Birdfinding.info \u21d2<\/em><\/strong>\u00a0 Recently described and little-known, Monteiro\u2019s Storm-Petrel<\/strong> is locally common in the central Azores from late March into October.\u00a0 Most sightings are in the waters east of Graciosa, especially at Fortuna Bank.\u00a0 The largest known colony is on Ilh\u00e9u de Praia, which lies about 1 km offshore from the port town of Praia\u2014however, the adults attend the colony nocturnally and are rarely seen from the town during daylight hours.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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Monteiro\u2019s Storm-Petrel<\/strong><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Hydrobates monteiroi<\/em><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t
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Family: Hydrobatidae<\/a><\/strong><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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Endemic to the Azores; range at sea unknown.<\/strong><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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Conjectural at-sea distribution of Monteiro\u2019s Storm-Petrel. \u00a0\u00a9 BirdLife International 2018<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t
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Breeds mainly on islets adjacent to three or four of the main Azorean islands.\u00a0 The majority (~300 pairs) nest near Graciosa on Baixo, Baleia, and Praia islets.\u00a0 Smaller numbers nest on islets near Flores, and are suspected of breeding around Corvo, and possibly also around S\u00e3o Miguel (detected nearshore in summer).<\/p>
The breeding season is approximately March to October.\u00a0 Adults return in March and lay their eggs in May or June, with a few in early July.\u00a0 Juveniles fledge in late August and September, with a few in early October.<\/p>
There appear to be no confirmed records outside of the Azorean archipelago.\u00a0 Tissue sample evidence of its winter diet reportedly suggests that it remains in the central North Atlantic, and is essentially non-migratory\u2014 unlike \u201cGrant\u2019s Storm-Petrel\u201d<\/strong><\/a>, for which the comparable evidence corroborates its known migratory pattern.\u00a0 (These tissue samples were collected for the original research project that initially detected differences between the populations and ultimately led to the recognition of Monteiro\u2019s as a separate species.)<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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Identification<\/strong><\/span><\/p>
As a cryptic species within the Band-rumped Storm-Petrel<\/strong><\/a> complex, Monteiro\u2019s is visually indistinguishable from other band-rumped-type storm-petrels under most circumstances.<\/p>
Its tail averages much more deeply notched than on \u201cGrant\u2019s\u201d<\/strong><\/a>\u2014the other band-rumped-type storm-petrel that breeds in the Azores\u2014but can still appear square at some angles or when fanned.\u00a0 In the hand, Monteiro\u2019s averages slightly smaller than \u201cGrant\u2019s\u201d in most measurements, but with a slightly longer tail and proportionately longer wings.\u00a0 (Except for tail-notch depth, all of these metrics overlap widely.)<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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Monteiro\u2019s Storm-Petrel, showing characteristically notched tail and molting secondaries\u2014which is normal for an adult late in its breeding season.\u00a0 (Banco da Fortuna, offshore east of Graciosa, A\u00e7ores, Portugal; August 25, 2013.)\u00a0 \u00a9 Richard Bonser<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Like other band-rumped-type storm-petrels, Monteiro\u2019s is dark-brown overall, with an even white band across the rump that usually extends partway down the sides of the rump to the undertail.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t
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Band-rumped-type storm-petrels strongly resemble storm-petrels of other groups (such as Leach\u2019s<\/strong><\/a> and Wilson\u2019s<\/strong><\/a>), and are best distinguished by their characteristic flight pattern: which is comparatively steady and stable, often gliding on flat wings like a shearwater.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Monteiro\u2019s Storm-Petrel\u2014identification presumed based on location and season, despite lack of visible tail notch in this view.\u00a0 (Offshore southeast of Graciosa, A\u00e7ores, Portugal; May 26, 2007.)\u00a0 \u00a9 Killian Mullarney<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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As with most dark storm-petrels, all band-rumped-types typically show a paler brown or whitish diagonal stripe on the wing coverts, but the boldness varies depending on molt-stage and lighting.\u00a0 So the apparent color and boldness of the wingbar can provide clues to the age and molt-stage of closely observed individuals.<\/p>
Juveniles and freshly molted adults have the most pronounced wingbars.\u00a0 On juveniles the bar appears white.\u00a0 On adults returning to the breeding grounds, the bar is blond.\u00a0 With feather-wear, the bar diminishes and can disappear entirely by the time the next molt begins.<\/p>
For conditions where wing-molt can be discerned: adult Monteiro\u2019s begins molting in late summer and completes in mid-winter; and first-year Monteiro\u2019s would likely begin molting in May and complete in September (see Howell & Zufelt 2021).\u00a0 Note that this expected seasonality of feather-wear and replacement is effectively identical to that of \u201cMadeiran Storm-Petrel\u201d<\/strong><\/a>.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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Monteiro\u2019s Storm-Petrel\u2014identification presumed based on location and season.\u00a0 (Offshore from Graciosa, A\u00e7ores, Portugal; June 2, 2011.)\u00a0 \u00a9 Richard Bonser<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t
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Monteiro\u2019s Storm-Petrel, apparently molting secondaries late in the breeding season\u2014as is expected for adult Monteiro\u2019s in late summer.\u00a0 (Offshore from Graciosa, A\u00e7ores, Portugal; September 1, 2019.)\u00a0 \u00a9 Fran\u00e7ois Stocman<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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Voice.<\/em><\/strong>\u00a0 Two types of calls are heard at breeding colonies: chattering and purring.\u00a0 Both resemble the equivalent calls of other storm-petrels, but differ in their patterns.<\/p>
Monteiro\u2019s\u2019 chatter call is shorter and simpler than the calls of other North Atlantic band-rumped-types: typically comprising four to six notes, whereas the others vary from six up to sixteen (4 to 6 in Monteiro\u2019s; 9 in \u201cGrant\u2019s\u201d; 6 to 11 in \u201cMadeiran\u201d; 11 to 16 in Cape Verde).<\/p>
Monteiro\u2019s\u2019 purring call consists of a rough purr or rattle followed by one or more \u201cyelps\u201d (less squeaky than other band-rumped-types, more like the scratch of a phonograph needle) with a brief gap between the purr and the yelp: <\/iframe>(For a detailed review with more recordings and sonograms, see <a href=\"https:\/\/soundapproach.co.uk\/species\/monteiros-storm-petrel\/\"><strong><em>The Sound Approach: Monteiro\u2019s Storm-Petrel<\/em><\/strong><\/a>.)<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-3dd4c12d elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"3dd4c12d\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-367d6b1d\" data-id=\"367d6b1d\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1fc3c664 elementor-widget elementor-widget-text-editor\" data-id=\"1fc3c664\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"text-decoration: underline;\"><strong>Notes<\/strong><\/span><\/p><p>Monotypic species.\u00a0 Formally described in 2008 (Bolton et al.), following the discovery in the mid-1990s that two populations that both appeared to be <a href=\"https:\/\/birdfinding.info\/band-rumped-storm-petrel\/\"><strong>Band-rumped Storm-Petrel<\/strong><\/a> (<em>H. castro<\/em>) were breeding in the Azores at different seasons, subsequent studies that found consistent differences in structure, voice, and foraging habits, and genetic analyses showing that the populations had diverged between approximately 70,000 and 150,000 years ago.<\/p><p>IUCN Red List Status: <strong>Vulnerable<\/strong>.<\/p><p>See below for comparisons of Monteiro\u2019s Storm-Petrel with \u201cGrant\u2019s Storm-Petrel\u201d and other Atlantic members of the Band-rumped Storm-Petrel complex.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-2a3231b5 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"2a3231b5\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-7ca7430f\" data-id=\"7ca7430f\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-522cb98a elementor-widget elementor-widget-text-editor\" data-id=\"522cb98a\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><strong><em>Cf. <a href=\"https:\/\/birdfinding.info\/grants-storm-petrel\/\">\u201cGrant\u2019s Storm-Petrel\u201d<\/a>.<\/em><\/strong>\u00a0 Among the many populations of storm-petrels that were formerly classified together as Band-rumped, the first discovery of a \u201ccryptic species\u201d distinction was between the two populations that breed in the Azores: one in the hot season (Monteiro\u2019s, which lays its eggs between early May and early July), the other in the cool season (\u201cGrant\u2019s\u201d, which lays between early October and early December).\u00a0 Monteiro\u2019s is not known to occur anywhere besides the Azores and surrounding seas, whereas \u201cGrant\u2019s\u201d also breeds on other island groups east to the Berlengas and south to the Canaries, and migrates to the western North Atlantic and Gulf of Mexico.<\/p><p>Within the Azores, around their shared breeding grounds, Monteiro\u2019s and \u201cGrant\u2019s\u201d overlap en masse twice.\u00a0 First in spring, during March and April, both are present in the area: Monteiro\u2019s arrives while \u201cGrant\u2019s\u201d departs.\u00a0 Second in late summer, from mid-August into early October, both occur at the colonies, with \u201cGrant\u2019s\u201d replacing Monteiro\u2019s.\u00a0 At this time they have been observed in the same burrows\u2014with \u201cGrant\u2019s\u201d prospecting sites still occupied by fledgling Monteiro\u2019s.<\/p><p>Due to the close relationship between them and the intensive research that led to their recognition as separate species, they have been compared more closely than other Band-rumped forms.\u00a0 See the biometric data compiled in Table 1, below, from Bolton et al. 2008\u2014the paper that effectively proved their identities as separate species.\u00a0 Despite these robust comparisons, Monteiro\u2019s and \u201cGrant\u2019s\u201d can still be indistinguishable, even under optimal conditions.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-38b7ba5e elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"38b7ba5e\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-b8c5da5\" data-id=\"b8c5da5\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-56f6ac13 elementor-widget elementor-widget-text-editor\" data-id=\"56f6ac13\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Summarizing the differences: Monteiro\u2019s averages slightly smaller in the body (e.g., weight and bill size), but slightly longer in the tail and wings.\u00a0 Tail fork depth is the most consistent visible differentiator, as Monteiro\u2019s averages more than twice as deep: 7.81 mm for Monteiro\u2019s versus 3.53 mm for \u201cGrant\u2019s\u201d.\u00a0 Note that even these measurements overlap broadly (1 to 14 mm for Monteiro\u2019s versus 0 to 7 mm for \u201cGrant\u2019s\u201d), while all other recorded metrics overlap far more than they differ.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-7045d91a\" data-id=\"7045d91a\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-109bd072 elementor-widget elementor-widget-image\" data-id=\"109bd072\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"701\" height=\"241\" src=\"https:\/\/birdfinding.info\/wp-content\/uploads\/2021\/12\/Monteiro-Grant-comparison-table.png\" class=\"attachment-large size-large wp-image-112061\" alt=\"\" srcset=\"https:\/\/birdfinding.info\/wp-content\/uploads\/2021\/12\/Monteiro-Grant-comparison-table.png 701w, https:\/\/birdfinding.info\/wp-content\/uploads\/2021\/12\/Monteiro-Grant-comparison-table-300x103.png 300w\" sizes=\"(max-width: 701px) 100vw, 701px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-36389c9d elementor-widget elementor-widget-text-editor\" data-id=\"36389c9d\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Table 1 from Bolton et al. 2008, comparing measurements of >100 \u201cGrant\u2019s Storm-Petrels\u201d (the cool season population) and >200 Monteiro\u2019s Storm-Petrels (the hot season population).<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-38f4c87d elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"38f4c87d\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-4597517a\" data-id=\"4597517a\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-46960c9d elementor-widget elementor-widget-text-editor\" data-id=\"46960c9d\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>In spring and late summer in the Azores, Monteiro\u2019s and \u201cGrant\u2019s\u201d differ in their predominant molt-stages, although the differences are difficult to specify and apply.\u00a0 At the end of their breeding season, the adults of one population should appear either worn or visibly molting.\u00a0 Conversely, at the beginning of their breeding season, most adults of the other population should be near the middle of their cycle\u2014not visibly worn, nor molting.\u00a0 These distinctions can be helpful in context, but several factors counsel against heavy reliance on molt-stage: i.e., the wide variability of feather-wear and replacement, along with the likely presence of some first-year birds and the possible presence of other Band-rumped forms.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-262c87f0 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"262c87f0\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-3a8c6abf\" data-id=\"3a8c6abf\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-41b7840c elementor-widget elementor-widget-text-editor\" data-id=\"41b7840c\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><strong><em>Cf. Other Atlantic Band-rumped-type storm-petrels.<\/em><\/strong>\u00a0 At least six cryptic species or forms in the <a href=\"https:\/\/birdfinding.info\/band-rumped-storm-petrel\/\"><strong>Band-rumped Storm-Petrel<\/strong><\/a> complex have been recognized in the Atlantic.\u00a0 Four breed on North Atlantic archipelagos of Macaronesia and two on widely scattered islands of the South Atlantic.\u00a0 Apart from their breeding grounds, the ranges of these forms remain mostly unknown.\u00a0 Sightings are scarce and the forms are extremely difficult to distinguish from one another at sea.<\/p><p>The four North Atlantic forms overlap with one another to varying degrees and are known to differ vocally.\u00a0 In brief, all four have two similar call types\u2014chattering and purring\u2014which vary in length, pattern, and complexity.\u00a0 Differing calls have helped to confirm their respective breeding distributions, but they generally call only on the breeding grounds and only at night.<\/p><p>In most cases, under most conditions, the visual differences among the forms are too subtle and inconsistent for field identification.\u00a0 With that caveat, following is a summary of factors that might help in exceptional circumstances\u2014the forms are listed by the average latitudes of their breeding grounds, from north to south.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-3a6a6b22 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"3a6a6b22\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-2d8e5173\" data-id=\"2d8e5173\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-51829800 elementor-widget elementor-widget-image\" data-id=\"51829800\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"571\" src=\"https:\/\/birdfinding.info\/wp-content\/uploads\/2021\/12\/CapeVerdeStormPetrel1-768x571.png\" class=\"attachment-medium_large size-medium_large wp-image-112221\" alt=\"\" srcset=\"https:\/\/birdfinding.info\/wp-content\/uploads\/2021\/12\/CapeVerdeStormPetrel1-768x571.png 768w, https:\/\/birdfinding.info\/wp-content\/uploads\/2021\/12\/CapeVerdeStormPetrel1-300x223.png 300w, https:\/\/birdfinding.info\/wp-content\/uploads\/2021\/12\/CapeVerdeStormPetrel1.png 868w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2056186 elementor-widget elementor-widget-text-editor\" data-id=\"2056186\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Cape Verde Storm-Petrel\u2014identification presumed based on the location, far out at sea south of Cape Verde, though any of the Atlantic band-rumped forms could occur there at any time of year.\u00a0 (May 4, 2011.) \u00a0<a href=\"https:\/\/flickr.com\/photos\/37347725@N07\/5771802228\">\u00a9 Graham Ekins<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1e80ada0 elementor-widget elementor-widget-image\" data-id=\"1e80ada0\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"480\" height=\"320\" src=\"https:\/\/birdfinding.info\/wp-content\/uploads\/2022\/01\/MadeiranStormPetrel14.jpg\" class=\"attachment-medium_large size-medium_large wp-image-116210\" alt=\"\" srcset=\"https:\/\/birdfinding.info\/wp-content\/uploads\/2022\/01\/MadeiranStormPetrel14.jpg 480w, https:\/\/birdfinding.info\/wp-content\/uploads\/2022\/01\/MadeiranStormPetrel14-300x200.jpg 300w\" sizes=\"(max-width: 480px) 100vw, 480px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-16ca16f8 elementor-widget elementor-widget-text-editor\" data-id=\"16ca16f8\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>\u201cMadeiran Storm-Petrel\u201d, <em>H. c. castro<\/em> \u2014likely this subspecies, based on molt-stage, season, and location within its known breeding range\u2014but these factors are also consistent with Monteiro\u2019s, Cape Verde, and first-year \u201cGrant\u2019s\u201d, all plausible alternative identifications.\u00a0 (Offshore northeast of Lanzarote, Canary Islands, Spain; November 1, 2014.) \u00a0<a href=\"https:\/\/macaulaylibrary.org\/asset\/188554101\">\u00a9 Miguel Rouco<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-27e2afd8\" data-id=\"27e2afd8\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-78ceb3ee elementor-widget elementor-widget-image\" data-id=\"78ceb3ee\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"400\" src=\"https:\/\/birdfinding.info\/wp-content\/uploads\/2021\/12\/MonteirosStormPetrel5.jpg\" class=\"attachment-medium_large size-medium_large wp-image-112068\" alt=\"\" srcset=\"https:\/\/birdfinding.info\/wp-content\/uploads\/2021\/12\/MonteirosStormPetrel5.jpg 600w, https:\/\/birdfinding.info\/wp-content\/uploads\/2021\/12\/MonteirosStormPetrel5-300x200.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-55b72e03 elementor-widget elementor-widget-text-editor\" data-id=\"55b72e03\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Monteiro\u2019s Storm-Petrel\u2014based on large samples of measured individuals at their Azorean breeding sites, Monteiro\u2019s tends to have a more deeply notched tail than \u201cGrant\u2019s\u201d, but their measurements overlap.\u00a0 (Offshore from Graciosa, A\u00e7ores, Portugal; May 2011.)\u00a0 <a href=\"https:\/\/africanbirdclub.org\/afbid\/search\/birddetails\/birder\/2591\/20259\">\u00a9 Gareth Knass<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6e53d187 elementor-widget elementor-widget-image\" data-id=\"6e53d187\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"497\" height=\"431\" src=\"https:\/\/birdfinding.info\/wp-content\/uploads\/2021\/12\/GulfofGuineaStormPetrel5.png\" class=\"attachment-medium_large size-medium_large wp-image-113048\" alt=\"\" srcset=\"https:\/\/birdfinding.info\/wp-content\/uploads\/2021\/12\/GulfofGuineaStormPetrel5.png 497w, https:\/\/birdfinding.info\/wp-content\/uploads\/2021\/12\/GulfofGuineaStormPetrel5-300x260.png 300w\" sizes=\"(max-width: 497px) 100vw, 497px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b6db32 elementor-widget elementor-widget-text-editor\" data-id=\"b6db32\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>\u201cGulf of Guinea Storm-Petrel\u201d, <em>H. c.<\/em> ssp. nova, showing apparently thin rump-band and long-looking tail.\u00a0 <a href=\"https:\/\/bioone.org\/journals\/bulletin-of-the-british-ornithologists-club\/volume-139\/issue-2\/bboc.v139i2.2019.a10\/What-is-known-about-the-enigmatic-Gulf-of-Guinea-band\/10.25226\/bboc.v139i2.2019.a10.full\">\u00a9 William H. Wagstaff<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-5c9429c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"5c9429c\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-69c60ead\" data-id=\"69c60ead\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-554b77ed elementor-widget elementor-widget-text-editor\" data-id=\"554b77ed\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><strong><u>Monteiro\u2019s<\/u><\/strong><strong><u> Storm-Petrel<\/u><\/strong><u> (<em>monteroi<\/em>):<\/u> Breeds in the Azores from March to October (eggs laid from early May to early July).\u00a0 Gives the shortest, simplest calls, with a rougher, scratchier quality than the others.\u00a0 Relatively small-bodied, long-tailed, and long-winged, and usually has a visibly notched tail.<\/p><p><a href=\"https:\/\/birdfinding.info\/grants-storm-petrel\/\"><strong><u>\u201cGrant\u2019s Storm-Petrel\u201d<\/u><\/strong><\/a><u> (ssp. nova):<\/u> Breeds from the Azores east to the Berlengas and south to the Canaries from August to April (eggs laid from early October to early December).\u00a0 Calls end with signature punctuation.\u00a0 Relatively large and robust, and has a squarish or shallowly notched tail.\u00a0 Post-breeding adults show heavy feather-wear and\/or molting flight feathers most noticeably from April to June\u2014when Monteiro\u2019s and \u201cMadeiran\u201d are fresh-plumaged.<\/p><p><a href=\"https:\/\/birdfinding.info\/madeiran-storm-petrel\/\"><strong><u>\u201cMadeiran Storm-Petrel\u201d<\/u><\/strong><\/a><u> (<em>castro<\/em>):<\/u> Breeds in Madeira, the Selvagens, and the Canaries from April to October (eggs laid in June and July).\u00a0 Calls are squeaky, rapid, about intermediate in length between Monteiro\u2019s and Cape Verde, and lack the particular ending of \u201cGrant\u2019s\u201d.\u00a0 Relatively small and slim overall; tail can appear either square-tipped or notched.<\/p><p><a href=\"https:\/\/birdfinding.info\/cape-verde-storm-petrel\/\"><strong><u>Cape Verde Storm-Petrel<\/u><\/strong><\/a><u> (<em>jabejabe<\/em>):<\/u> Breeds in Cape Verde over an extended season, possibly year-round with two peaks\u2014one from October into winter, the other from April into summer.\u00a0 Gives the longest, most complex calls, and genetic analyses indicate that it is the oldest divergent lineage in the band-rumped complex.\u00a0 Proportions are average, and has a squarish or shallowly notched tail.<\/p><p><a href=\"https:\/\/birdfinding.info\/gulf-of-guinea-storm-petrel\/\"><strong><u>\u201c<\/u><\/strong><strong><u>Gulf of Guinea <\/u><\/strong><strong><u>Storm-Petrel\u201d<\/u><\/strong><\/a><u> (ssp. nova):<\/u> Breeds on S\u00e3o Tom\u00e9 over an extended season, possibly year-round.\u00a0 Calls are relatively long and complex, suggesting an affinity with Cape Verde.\u00a0 Appears slightly larger than other forms, with a narrow white rump band and long-looking squarish or shallowly notched tail.<\/p><p><a href=\"https:\/\/birdfinding.info\/st-helena-storm-petrel\/\"><strong><u>\u201cSt. Helena Storm-Petrel\u201d<\/u><\/strong><\/a><u> (<em>helena<\/em>):<\/u> Breeds on St. Helena and Ascension in two seasons\u2014possibly multiple distinct forms or cryptic species\u2014one from October to March, the other from April to September.\u00a0 Attends the nest diurnally.\u00a0 On some individuals the white rump band extends far down undertail coverts.\u00a0 Slightly larger than most other forms; usually shows a visibly notched tail.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-5228eaca elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"5228eaca\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-625c2fd3\" data-id=\"625c2fd3\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1397c447 elementor-widget elementor-widget-text-editor\" data-id=\"1397c447\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"text-decoration: underline;\"><strong>Additional Photos of <u>Monteiro\u2019s Storm-Petrel<\/u><br \/><\/strong><\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-2e9e0c3 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"2e9e0c3\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-095baff\" data-id=\"095baff\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-e595d3e elementor-widget elementor-widget-image\" data-id=\"e595d3e\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"400\" src=\"https:\/\/birdfinding.info\/wp-content\/uploads\/2022\/01\/MonteirosStormPetrel10.jpg\" class=\"attachment-medium_large size-medium_large wp-image-117281\" alt=\"\" srcset=\"https:\/\/birdfinding.info\/wp-content\/uploads\/2022\/01\/MonteirosStormPetrel10.jpg 600w, https:\/\/birdfinding.info\/wp-content\/uploads\/2022\/01\/MonteirosStormPetrel10-300x200.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-db7aee6 elementor-widget elementor-widget-text-editor\" data-id=\"db7aee6\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Monteiro\u2019s Storm-Petrel.\u00a0 (Offshore from Graciosa, A\u00e7ores, Portugal; June 2011.)\u00a0 <a href=\"https:\/\/africanbirdclub.org\/afbid\/search\/birddetails\/birder\/2591\/20261\">\u00a9 Gareth Knass<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-9af4f26\" data-id=\"9af4f26\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5024699 elementor-widget elementor-widget-image\" data-id=\"5024699\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"562\" src=\"https:\/\/birdfinding.info\/wp-content\/uploads\/2022\/01\/MonteirosStormPetrel9-768x562.jpg\" class=\"attachment-medium_large size-medium_large wp-image-117280\" alt=\"\" srcset=\"https:\/\/birdfinding.info\/wp-content\/uploads\/2022\/01\/MonteirosStormPetrel9-768x562.jpg 768w, https:\/\/birdfinding.info\/wp-content\/uploads\/2022\/01\/MonteirosStormPetrel9-300x220.jpg 300w, https:\/\/birdfinding.info\/wp-content\/uploads\/2022\/01\/MonteirosStormPetrel9.jpg 1022w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-eb4a6c4 elementor-widget elementor-widget-text-editor\" data-id=\"eb4a6c4\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Monteiro\u2019s Storm-Petrel.\u00a0 (Offshore southeast of Graciosa, A\u00e7ores, Portugal; May 26, 2007.)\u00a0 <a href=\"https:\/\/soundapproach.co.uk\/species\/monteiros-storm-petrel\/\">\u00a9 Killian Mullarney<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-510b96d3 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"510b96d3\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-311ca6b6\" data-id=\"311ca6b6\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-685205c0 elementor-widget elementor-widget-image\" data-id=\"685205c0\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"753\" height=\"504\" src=\"https:\/\/birdfinding.info\/wp-content\/uploads\/2022\/01\/MonteirosStormPetrel8.jpg\" class=\"attachment-medium_large size-medium_large wp-image-117279\" alt=\"\" srcset=\"https:\/\/birdfinding.info\/wp-content\/uploads\/2022\/01\/MonteirosStormPetrel8.jpg 753w, https:\/\/birdfinding.info\/wp-content\/uploads\/2022\/01\/MonteirosStormPetrel8-300x201.jpg 300w\" sizes=\"(max-width: 753px) 100vw, 753px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-20846dde elementor-widget elementor-widget-text-editor\" data-id=\"20846dde\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Monteiro\u2019s Storm-Petrel.\u00a0 (Ilh\u00e9u de Praia, Graciosa, A\u00e7ores, Portugal.)\u00a0 <a href=\"https:\/\/www.azoreswhalewatch.com\/educational\/speciescatalogue\/birds\/monteiro-storm-petrel\/\">\u00a9 Pedro Silva<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-be35735\" data-id=\"be35735\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-45f14def elementor-widget elementor-widget-image\" data-id=\"45f14def\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"480\" height=\"270\" src=\"https:\/\/birdfinding.info\/wp-content\/uploads\/2021\/12\/MonteirosStormPetrel7.jpg\" class=\"attachment-medium_large size-medium_large wp-image-112162\" alt=\"\" srcset=\"https:\/\/birdfinding.info\/wp-content\/uploads\/2021\/12\/MonteirosStormPetrel7.jpg 480w, https:\/\/birdfinding.info\/wp-content\/uploads\/2021\/12\/MonteirosStormPetrel7-300x169.jpg 300w\" sizes=\"(max-width: 480px) 100vw, 480px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2ad120b5 elementor-widget elementor-widget-text-editor\" data-id=\"2ad120b5\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Monteiro\u2019s Storm-Petrel at breeding colony.\u00a0 (Ilh\u00e9u de Baixo, Graciosa, A\u00e7ores, Portugal; June 8, 2021.)\u00a0 <a href=\"https:\/\/macaulaylibrary.org\/asset\/347008911\">\u00a9 R\u00faben Coelho<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-3b258137 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"3b258137\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-14a6cdeb\" data-id=\"14a6cdeb\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4ddd1447 elementor-widget elementor-widget-text-editor\" data-id=\"4ddd1447\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"text-decoration: underline;\"><strong>References<\/strong><\/span><\/p><p>BirdLife International. 2018. <em>Hydrobates monteiroi<\/em>. <em>The IUCN Red List of Threatened Species 2018:<\/em> e.T22735624A132665118. <a href=\"https:\/\/dx.doi.org\/10.2305\/IUCN.UK.2018-2.RLTS.T22735624A132665118.en\">https:\/\/dx.doi.org\/10.2305\/IUCN.UK.2018-2.RLTS.T22735624A132665118.en<\/a>. (Accessed December 14, 2021.)<\/p><p>Bolton, M., A.L. Smith, A. L., E. G\u00f3mez-D\u00edaz, V.L. Friesen, R. Medeiros, J. Bried, J.L. Roscales, and R.W. Furness. 2008. Monteiro\u2019s Storm Petrel Oceanodroma monteiroi: a new species from the Azores. <em>Ibis<\/em> 150:717-727.<\/p><p>eBird. 2021. eBird: An online database of bird distribution and abundance. Cornell Lab of Ornithology, Ithaca, N.Y. <a href=\"http:\/\/www.ebird.org\">http:\/\/www.ebird.org<\/a>. (Accessed December 14, 2021.)<\/p><p>Garcia-del-Rey, E. 2011. <em>Field Guide to the Birds of Macaronesia: Azores, Madeira, Canary Islands, Cape Verde<\/em>. Lynx Editions, Barcelona.<\/p><p>Harrison, P. 1983. <em>Seabirds: An Identification Guide<\/em>. Houghton Mifflin, Boston.<\/p><p>Howell, S.N.G. 2012. <em>Petrels, Albatrosses & Storm-Petrels of North America<\/em>. Princeton University Press.<\/p><p>Howell, S.N.G., and K. Zufelt. 2019. <em>Oceanic Birds of the World.<\/em> Princeton University Press.<\/p><p>Onley, D., and P. Scofield. 2007. <em>Albatrosses, Petrels & Shearwaters of the World<\/em>. Princeton University Press.<\/p><p>The Sound Approach. 2019. Monteiro\u2019s Storm-Petrel, <em>Oceanodroma monteiroi<\/em>. <a href=\"https:\/\/soundapproach.co.uk\/species\/monteiros-storm-petrel\/\">https:\/\/soundapproach.co.uk\/species\/monteiros-storm-petrel\/<\/a>.<\/p><p>Xeno-Canto. 2021. Monteiro\u2019s Storm Petrel \u2013 <em>Oceanodroma monteiroi<\/em>. <a href=\"https:\/\/xeno-canto.org\/species\/Oceanodroma-monteiroi\">https:\/\/xeno-canto.org\/species\/Oceanodroma-monteiroi<\/a>. (Accessed December 14, 2021.)<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>\u00a9 Peter Alfrey \u00a9 Alba Villarroya Birdfinding.info \u21d2\u00a0 Recently described and little-known, Monteiro\u2019s Storm-Petrel is locally common in the central Azores from late March into October.\u00a0 Most sightings are in the waters east of Graciosa, especially at Fortuna Bank.\u00a0 The largest known colony is on Ilh\u00e9u de Praia, which lies about 1 km offshore from […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"ocean_post_layout":"right-sidebar","ocean_both_sidebars_style":"","ocean_both_sidebars_content_width":0,"ocean_both_sidebars_sidebars_width":0,"ocean_sidebar":"0","ocean_second_sidebar":"0","ocean_disable_margins":"enable","ocean_add_body_class":"","ocean_shortcode_before_top_bar":"","ocean_shortcode_after_top_bar":"","ocean_shortcode_before_header":"","ocean_shortcode_after_header":"","ocean_has_shortcode":"","ocean_shortcode_after_title":"","ocean_shortcode_before_footer_widgets":"","ocean_shortcode_after_footer_widgets":"","ocean_shortcode_before_footer_bottom":"","ocean_shortcode_after_footer_bottom":"","ocean_display_top_bar":"off","ocean_display_header":"default","ocean_header_style":"","ocean_center_header_left_menu":"0","ocean_custom_header_template":"0","ocean_custom_logo":0,"ocean_custom_retina_logo":0,"ocean_custom_logo_max_width":0,"ocean_custom_logo_tablet_max_width":0,"ocean_custom_logo_mobile_max_width":0,"ocean_custom_logo_max_height":0,"ocean_custom_logo_tablet_max_height":0,"ocean_custom_logo_mobile_max_height":0,"ocean_header_custom_menu":"0","ocean_menu_typo_font_family":"0","ocean_menu_typo_font_subset":"","ocean_menu_typo_font_size":0,"ocean_menu_typo_font_size_tablet":0,"ocean_menu_typo_font_size_mobile":0,"ocean_menu_typo_font_size_unit":"px","ocean_menu_typo_font_weight":"","ocean_menu_typo_font_weight_tablet":"","ocean_menu_typo_font_weight_mobile":"","ocean_menu_typo_transform":"","ocean_menu_typo_transform_tablet":"","ocean_menu_typo_transform_mobile":"","ocean_menu_typo_line_height":0,"ocean_menu_typo_line_height_tablet":0,"ocean_menu_typo_line_height_mobile":0,"ocean_menu_typo_line_height_unit":"","ocean_menu_typo_spacing":0,"ocean_menu_typo_spacing_tablet":0,"ocean_menu_typo_spacing_mobile":0,"ocean_menu_typo_spacing_unit":"","ocean_menu_link_color":"","ocean_menu_link_color_hover":"","ocean_menu_link_color_active":"","ocean_menu_link_background":"","ocean_menu_link_hover_background":"","ocean_menu_link_active_background":"","ocean_menu_social_links_bg":"","ocean_menu_social_hover_links_bg":"","ocean_menu_social_links_color":"","ocean_menu_social_hover_links_color":"","ocean_disable_title":"default","ocean_disable_heading":"default","ocean_post_title":"","ocean_post_subheading":"","ocean_post_title_style":"","ocean_post_title_background_color":"","ocean_post_title_background":0,"ocean_post_title_bg_image_position":"","ocean_post_title_bg_image_attachment":"","ocean_post_title_bg_image_repeat":"","ocean_post_title_bg_image_size":"","ocean_post_title_height":0,"ocean_post_title_bg_overlay":0.5,"ocean_post_title_bg_overlay_color":"","ocean_disable_breadcrumbs":"default","ocean_breadcrumbs_color":"","ocean_breadcrumbs_separator_color":"","ocean_breadcrumbs_links_color":"","ocean_breadcrumbs_links_hover_color":"","ocean_display_footer_widgets":"default","ocean_display_footer_bottom":"default","ocean_custom_footer_template":"0","ocean_post_oembed":"","ocean_post_self_hosted_media":"","ocean_post_video_embed":"","ocean_link_format":"","ocean_link_format_target":"self","ocean_quote_format":"","ocean_quote_format_link":"post","ocean_gallery_link_images":"off","ocean_gallery_id":[],"footnotes":""},"categories":[4],"tags":[],"class_list":["post-112070","post","type-post","status-publish","format-standard","hentry","category-species","entry"],"_links":{"self":[{"href":"https:\/\/birdfinding.info\/wp-json\/wp\/v2\/posts\/112070","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/birdfinding.info\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/birdfinding.info\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/birdfinding.info\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/birdfinding.info\/wp-json\/wp\/v2\/comments?post=112070"}],"version-history":[{"count":296,"href":"https:\/\/birdfinding.info\/wp-json\/wp\/v2\/posts\/112070\/revisions"}],"predecessor-version":[{"id":117350,"href":"https:\/\/birdfinding.info\/wp-json\/wp\/v2\/posts\/112070\/revisions\/117350"}],"wp:attachment":[{"href":"https:\/\/birdfinding.info\/wp-json\/wp\/v2\/media?parent=112070"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/birdfinding.info\/wp-json\/wp\/v2\/categories?post=112070"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/birdfinding.info\/wp-json\/wp\/v2\/tags?post=112070"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}