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{"id":62962,"date":"2020-11-27T09:14:24","date_gmt":"2020-11-27T13:14:24","guid":{"rendered":"https:\/\/www.birdfinding.info\/?p=62962"},"modified":"2020-12-04T17:28:06","modified_gmt":"2020-12-04T21:28:06","slug":"bridled-tern","status":"publish","type":"post","link":"https:\/\/birdfinding.info\/bridled-tern\/","title":{"rendered":"Bridled Tern"},"content":{"rendered":"\t\t
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\u00a9 Donna Pomeroy<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\u00a9 Margot Oorebeek<\/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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Birdfinding.info <\/em><\/strong>\u21d2<\/em><\/strong>\u00a0 Locally common in its principal breeding areas: along the eastern rim of the West Indies from the Bahamas to the Lesser Antilles; all around the Arabian Peninsula; and across a broad swath of the Indo-Pacific from southern Thailand and Taiwan to Western Australia, Queensland, and western Polynesia.\u00a0 In the U.S. it is fairly common from May to October in the Gulf Stream north to Hatteras, and a few pairs are usually present at the Dry Tortugas from April to July.<\/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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Bridled Tern<\/strong><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Onychoprion anaethetus<\/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: Laridae<\/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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Pantropical.<\/strong> \u00a0Largely pelagic when not breeding.<\/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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\u00a9 Xeno-Canto 2020<\/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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Breeding.<\/em><\/strong>\u00a0 Breeds colonially on tropical oceanic islets. \u00a0The regional populations are usually treated as four subspecies: Atlantic, western Indian, Indo-Pacific, and eastern Pacific.<\/p>

Atlantic:<\/u> melanopterus<\/em> breeds throughout the Caribbean region, on islands off of western Africa (Mauritania and Senegal) and in the Gulf of Guinea.\u00a0 The Caribbean population is estimated at about 10,000 pairs breeding at over 200 sites from Arrecife Alacranes (north of the Yucat\u00e1n Peninsula) and the Dry Tortugas to Aruba and Tobago, much more numerous and widespread eastward: in the Bahamas, Turks & Caicos, Puerto Rico, Virgin Islands, Leeward Islands, and Lesser Antilles.\u00a0 Has bred occasionally in the Azores.<\/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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West Indian Breeding Seabird Atlas 2009<\/a>.\u00a0 \u00a9 Will Mackin and David Lee<\/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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Western Indian:<\/u> antarcticus<\/em> breeds on islets in the Red Sea, Persian Gulf, and on several island groups of the western Indian Ocean south to Madagascar, Mauritius, and R\u00e9union, and east to Sri Lanka and the Cocos Keeling Islands.<\/p>

Indo-Pacific:<\/u> anaethetus<\/em> is the most widespread, breeding from south-coastal China (Fujian) and Japan\u2019s Yaeyema Islands south through the Philippines, Palau, and Indonesia to the eastern Indian Ocean (to southwestern Australia) and in the Pacific to Queensland, New Caledonia, and western Polynesia (east to American Samoa).<\/p>

Eastern Pacific:<\/u> n<\/em>elsoni<\/em> breeds on a few scattered islets from Nayarit, Mexico south to Ecuador, with the majority in the Gulf of Fonseca and Costa Rica.<\/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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Movements<\/em><\/strong>.\u00a0 Most populations are thought to disperse to offshore waters within the general region where they breed.\u00a0 The extent of this dispersal is not well understood and certainly varies from one region to another.<\/p>

From May to October, a significant portion of Caribbean population\u2014including nonbreeders, post-breeding adults, and juveniles\u2014moves into the Gulf of Mexico and the Atlantic Gulf Stream waters from Florida to North Carolina.<\/p>

Hurricanes sometimes transport dozens of Bridled Terns north to New England and inland across the eastern U.S. (to Arkansas and Tennessee).\u00a0 Under normal conditions, a few regularly wander north along the Eastern Seaboard as far as southern New England, exceptionally to Nova Scotia.\u00a0 Along the Pacific coast of North America, wanderers have reached southern California.<\/p>

Vagrants have strayed to many parts of the world, with several records from western Europe (north to the Shetland Islands), East Asia (north to Honshu), southern Africa, and the mid-Pacific (to Hawaii and the Gambier Islands).<\/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>

A mostly pelagic, dark-backed tern that habitually rests on flotsam at sea.\u00a0 This habit appears to be consistent throughout its range and is often a useful clue in identification.<\/p>

Breeding adults are dark-gray above, all-white below, with a black cap, white forehead and thin white eyebrows\u2014in the shape of a narrow visor.\u00a0 The upper back shades to paler gray, palest at the base of the neck, forming a pale-gray or white collar that contrasts sharply with the border of its black cap.<\/p>

In flight, from below, the wings typically appear mostly white, framed with a broad dark gray or blackish trailing edge and leading edge on the outermost primaries.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Bridled Tern, O. a.<\/em> anaethetus<\/em>, resting on marine debris, typical of Bridled Terns worldwide. \u00a0(Offshore from Po Toi, Hong Kong; May 24, 2008.) \u00a0\u00a9 Martin Hale<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Bridled Tern, O. a.<\/em> melanopterus<\/em>.\u00a0 (Garden Key, Dry Tortugas National Park, Florida; April 30, 2019.) \u00a0\u00a9 Doug Clarke<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Geographical Variation.<\/em><\/strong>\u00a0 The subspecies vary somewhat in coloration and pattern\u2014each varies internally and their tendencies differ to some extent.\u00a0 The most consistent distinction seems to be in the tail: melanopterus<\/em> generally has more extensively white outer tail feathers, a difference that is evident mainly in flight when viewed dorsally.<\/p>

The western and central Indian Ocean subspecies, antarcticus<\/em>, seems to have darker upperparts and more extensively blackish underwings, at least on average.<\/p>

Both antarcticus<\/em> and the Atlantic subspecies, melanopterus<\/em>, typically show a white collar between the black crown and gray back, whereas the Indo-Pacific anaethetus<\/em> usually has a gray collar\u2014paler than the back, but not white.<\/p>

In most if not all of these features, however, the variation within each subspecies seems to exceed the differences among them.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Bridled Tern, O. a.<\/em> antarcticus<\/em>, showing a broad, white collar.\u00a0 (Taleimannar, Sri Lanka; June 3, 2016.) \u00a0\u00a9 Mapalagama K. Premasiri<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Bridled Tern, O. a.<\/em> melanoptera<\/em>, showing a broad white collar.\u00a0 (Garden Key, Dry Tortugas National Park, Florida; June 15, 2017.) \u00a0\u00a9 Qianwen Rockoff<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Bridled Tern, O. a.<\/em> anaethetus<\/em>.\u00a0 (Rockingham, Western Australia; January 14, 2006.) \u00a0\u00a9 Paul Tavares<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Bridled Tern, O. a.<\/em> anaethetus<\/em>, showing mostly dark-gray upper back in this view.\u00a0 (Lady Elliot Island, Queensland, Australia; February 4, 2016.) \u00a0\u00a9 Ray Turnbull<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Bridled Tern, O. a.<\/em> melanopterus<\/em>, with upperparts appearing mostly blackish in this view, essentially indistinguishable from Sooty Tern, except for its long, thin eyebrow.\u00a0 (Falkner Island, Connecticut; August 1, 2017.) \u00a0\u00a9 Stephen Broker<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Bridled Tern, O. a.<\/em> anaethetus<\/em>, showing narrow white brow-stripe.\u00a0 (Ko Tao, Surat Thani, Thailand; July 9, 2019.) \u00a0\u00a9 Ayuwat Jearwattanakanok<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Bridled Tern, O. a.<\/em> melanopterus<\/em>.\u00a0 (Peterson Cay National Park, Grand Bahama; June 9, 2019.) \u00a0\u00a9 Martha Cartwright<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Bridled Tern, O. a.<\/em> anaethetus<\/em>, showing a facial expression that is both quizzical and angry. \u00a0(Xiao Yangshan Island, Zhejiang, China; June 7, 2020.) \u00a0\u00a9 Cheng Qian<\/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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Bridled Tern, O. a.<\/em> melanopterus<\/em>. \u00a0(Garden Key, Dry Tortugas National Park, Florida; May 5, 2019.) \u00a0\u00a9 Homer Gardin<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Bridled Tern, O. a.<\/em> antarcticus<\/em>. \u00a0(Umm Al-Maradim Island, Al Ahmadi, Kuwait; April 9, 2017.) \u00a0\u00a9 Paul Chapman<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Bridled Tern, O. a.<\/em> anaethetus<\/em>, with upperparts appearing somewhat brownish in this view. \u00a0(Penguin Island, Rockingham, Western Australia; February 7, 2017.) \u00a0\u00a9 James Kennerley<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Bridled Tern, O. a.<\/em> anaethetus<\/em>.\u00a0 (Penguin Island, Rockingham, Western Australia; April 12, 2015.) \u00a0\u00a9 Shelley Altman<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> anaethetus<\/em>, with upperparts appearing mostly blackish in this view.\u00a0 (Penguin Island, Rockingham, Western Australia; December 7, 2017.) \u00a0\u00a9 Greg Blackman<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> anaethetus<\/em>.\u00a0 (Lady Elliot Island, Queensland, Australia; December 4, 2010.) \u00a0\u00a9 Mat Gilfedder<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> anaethetus<\/em>, showing pale-gray (not white) collar, with upperparts appearing medium-gray in this view. \u00a0(Post Office Island, Houtman Abrolhos Islands, Western Australia; October 13, 2017.) \u00a0\u00a9 Ray Turnbull<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> melanoptera<\/em>.\u00a0 (Garden Key, Dry Tortugas National Park, Florida; June 5, 2017.) \u00a0\u00a9 Geoff Malosh<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> melanoptera<\/em>, showing its white visor.\u00a0 (Garden Key, Dry Tortugas National Park, Florida; April 22, 2018.) \u00a0\u00a9 Geoff Malosh<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> melanopterus<\/em>. \u00a0(Garden Key, Dry Tortugas National Park, Florida; July 6, 2019.) \u00a0\u00a9 John Groskopf<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> anaethetus<\/em>, showing mostly white underwing with blackish leading and trailing edges in the primaries, and narrowly white outer tail feathers.\u00a0 (Penguin Island, Rockingham, Western Australia; December 9, 2012.) \u00a0\u00a9 Margot Oorebeek<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> anaethetus<\/em>, showing a white collar.\u00a0 (Sai Kung, Hong Kong; July 9, 2020.) \u00a0\u00a9 Ryan Yue Wah Chan<\/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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Bridled Tern, O. a.<\/em> melanopterus<\/em>, showing extensively white outer tail feathers.\u00a0 (Offshore from Marathon, Florida; June 25, 2005.) \u00a0\u00a9 John H. Boyd III<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> anaethetus<\/em>.\u00a0 (Ko Tao, Surat Thani, Thailand; July 9, 2019.) \u00a0\u00a9 Ayuwat Jearwattanakanok<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> anaethetus<\/em>. \u00a0(Penguin Island, Rockingham, Western Australia; February 7, 2017.) \u00a0\u00a9 James Kennerley<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> nelsoni<\/em>.\u00a0 (Offshore from Tropic Star Lodge, Dari\u00e9n, Panama; June 12, 2017.) \u00a0\u00a9 William Hull<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> antarcticus<\/em>, showing a white collar and fairly extensively white outer tail feathers.\u00a0 (Dalma Island, Abu Dhabi, United Arab Emirates; March 17, 2012.) \u00a0\u00a9 Christophe Gouraud<\/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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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> anaethetus<\/em>, showing a white collar.\u00a0 (Sai Kung, Hong Kong; August 4, 2016.) \u00a0\u00a9 Lo Chun Fai<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> anaethetus<\/em>.\u00a0 (Ko Tao, Surat Thani, Thailand; July 9, 2019.) \u00a0\u00a9 Ayuwat Jearwattanakanok<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> antarcticus<\/em>, showing a white collar.\u00a0 (North 24 Parganas, West Bengal, India; May 21, 2020.)\u00a0 \u00a9 Sandip Das<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> melanopterus<\/em>. \u00a0(Garden Key, Dry Tortugas National Park, Florida; May 9, 2019.) \u00a0\u00a9 Donna Pomeroy<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> anaethetus<\/em>, with prey.\u00a0 (Sai Kung, Hong Kong; July 9, 2020.) \u00a0\u00a9 Ryan Yue Wah Chan<\/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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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> anaethetus<\/em>.\u00a0 (Michaelmas Cay, Queensland, Australia; January 2, 2020.) \u00a0\u00a9 J.J. Harrison<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> antarcticus<\/em>, showing extensively white underwing with typically broad blackish trailing edge.\u00a0 (Habitat Island, Abu Dhabi, United Arab Emirates; May 23, 2020.)\u00a0 \u00a9 Oscar Campbell<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> anaethetus<\/em>.\u00a0 (Hong Kong; August 4, 2016.) \u00a0\u00a9 Lo Chun Fai<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> melanopterus<\/em>.\u00a0 (Offshore from Cape Hatteras, North Carolina; August 13, 2016.)\u00a0 \u00a9 Knut Hansen<\/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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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> anaethetus<\/em>.\u00a0 (Sai Kung, Hong Kong; July 9, 2020.) \u00a0\u00a9 Ryan Yue Wah Chan<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> anaethetus<\/em>.\u00a0 (Ko Tao, Surat Thani, Thailand; July 9, 2019.) \u00a0\u00a9 Ayuwat Jearwattanakanok<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> antarcticus<\/em>, showing extensively white underwing with typically broad blackish trailing edge.\u00a0 (Taleimannar, Sri Lanka; June 3, 2016.) \u00a0\u00a9 Mapalagama K. Premasiri<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> anaethetus<\/em>.\u00a0 (Aunu\u2019u Island, American Samoa; November 4, 2017.) \u00a0\u00a9 Eric VanderWerf<\/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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Nonbreeding Plumages.<\/em><\/strong>\u00a0 Nonbreeders generally resemble breeding adults, but usually have a mostly white forehead, neck, and upper back, with a smudged, blackish hindcrown or cowl.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> anaethetus<\/em>.\u00a0 (Wilson Strait, Solomon Islands; July 12, 2015.) \u00a0\u00a9 Lars Petersson<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> melanopterus<\/em>, nonbreeding.\u00a0 (Offshore from Sanibel Island, Florida; June 21, 2020.) \u00a0\u00a9 David McQuade<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> melanopterus<\/em>, nonbreeding.\u00a0 (Offshore from Plaquemines Parish, Louisiana; September 2, 2017.) \u00a0\u00a9 Bryan White<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> melanopterus<\/em>, nonbreeding.\u00a0 (Broadwater Marina, Biloxi, Mississippi; June 8, 2020.)\u00a0 \u00a9 Lucy Jacobson<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> melanopterus<\/em>, nonbreeding\u2014likely first-summer based on plumage and date.\u00a0 (Biloxi, Mississippi; June 8, 2017.) \u00a0\u00a9 Abby Darrah<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> anaethetus<\/em>, nonbreeding.\u00a0 (Offshore in the Celebes Sea between Maratua and Kalimantan, Indonesia; October 15, 2014.)\u00a0 \u00a9 Christian Goenner<\/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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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> nelsoni<\/em>, nonbreeding.\u00a0 (Islote Pelado, Santa Elena, Ecuador; August 2, 2009.) \u00a0\u00a9 Roger Ahlman<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> anaethetus<\/em>, nonbreeding.\u00a0 (Singapore Strait; September 15, 2012.) \u00a0\u00a9 Tan Kok Hui<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> melanopterus<\/em>, nonbreeding.\u00a0 (Offshore from Cape Hatteras, North Carolina; June 1, 2017.)\u00a0 \u00a9 Skip Russell<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> antarcticus<\/em>, nonbreeding.\u00a0 (Offshore from North Maharashtra, India; October 6, 2013.) \u00a0\u00a9 Chinmay Rahane<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> antarcticus<\/em>, nonbreeding.\u00a0 (Qurayyat, Masqat, Oman; November 15, 2009.) \u00a0\u00a9 Christoph Moning<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> melanopterus<\/em>, nonbreeding\u2014likely first-summer based on plumage and date.\u00a0 (Hancock, Mississippi; June 21, 2017.) \u00a0\u00a9 June Ladner<\/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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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> melanopterus<\/em>, nonbreeding\u2014likely first-summer based on plumage and date.\u00a0 (Offshore from Cape Hatteras, North Carolina; June 1, 2019.) \u00a0\u00a9 Ryan Sanderson<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> melanopterus<\/em>, nonbreeding\u2014likely first-summer based on plumage and date.\u00a0 (Offshore from Cape Hatteras, North Carolina; June 1, 2019.) \u00a0\u00a9 Ethan Goodman<\/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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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> melanopterus<\/em>, nonbreeding.\u00a0 (Offshore from Cape Hatteras, North Carolina; August 7, 2020.)\u00a0 \u00a9 Eric Zawatski<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> melanopterus<\/em>, nonbreeding\u2014likely first-summer based on plumage and date.\u00a0 (Offshore from Naples, Florida; June 22, 2019.) \u00a0\u00a9 Tammy McQuade<\/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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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> anaethetus<\/em>, nonbreeding.\u00a0 (Offshore from Tanjung Dawai, Kedah, Malaysia; May 5, 2018.) \u00a0\u00a9 Neoh Hor Kee<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> melanopterus<\/em>, nonbreeding.\u00a0 (Offshore from Oregon Inlet, North Carolina; August 28, 2005.) \u00a0\u00a9 Brian Sullivan<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> anaethetus<\/em>, nonbreeding.\u00a0 (Offshore from Tanjung Dawai, Kedah, Malaysia; April 30, 2017.)\u00a0 \u00a9 Neoh Hor Kee<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> antarcticus<\/em>, nonbreeding.\u00a0 (North 24 Parganas, West Bengal, India; May 21, 2020.)\u00a0 \u00a9 Sandip Das<\/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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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> melanopterus<\/em>, nonbreeding.\u00a0 (Offshore from Plaquemines Parish, Louisiana; September 2, 2017.) \u00a0\u00a9 Hal Mitchell<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> anaethetus<\/em>, nonbreeding.\u00a0 (Offshore from Tanjung Dawai, Kedah, Malaysia; May 20, 2017.)\u00a0 \u00a9 Neoh Hor Kee<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> anaethetus<\/em>, nonbreeding.\u00a0 (Offshore from Tanjung Dawai, Kedah, Malaysia; May 20, 2017.)\u00a0 \u00a9 Neoh Hor Kee<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> anaethetus<\/em>, nonbreeding.\u00a0 (Offshore from Tanjung Dawai, Kedah, Malaysia; May 23, 2017.) \u00a0\u00a9 Dave Bakewell<\/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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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> anaethetus<\/em>, nonbreeding.\u00a0 (Offshore from Tanjung Dawai, Kedah, Malaysia; April 2, 2017.) \u00a0\u00a9 Neoh Hor Kee<\/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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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> antarcticus<\/em>, nonbreeding.\u00a0 (North 24 Parganas, West Bengal, India; May 21, 2020.)\u00a0 \u00a9 Sandip Das<\/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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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> melanopterus<\/em>, nonbreeding.\u00a0 (Offshore from Cape Hatteras, North Carolina; August 8, 2015.) \u00a0\u00a9 Jay McGowan<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> anaethetus<\/em>, nonbreeding.\u00a0 (Ko Tao, Surat Thani, Thailand; July 9, 2019.)\u00a0 \u00a9 Ayuwat Jearwattanakanok<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> anaethetus<\/em>, nonbreeding.\u00a0 (Offshore from Tanjung Dawai, Kedah, Malaysia; April 30, 2017.)\u00a0 \u00a9 Neoh Hor Kee<\/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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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> anaethetus<\/em>, nonbreeding.\u00a0 (Offshore from Tanjung Dawai, Kedah, Malaysia; May 5, 2018.) \u00a0\u00a9 Neoh Hor Kee<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> melanopterus<\/em>.\u00a0 (Offshore from Cape Hatteras, North Carolina; August 12, 2017.)\u00a0 \u00a9 Kyle Kittelberger<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> anaethetus<\/em>, nonbreeding.\u00a0 (Offshore from Tanjung Dawai, Kedah, Malaysia; April 2, 2017.) \u00a0\u00a9 Neoh Hor Kee<\/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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Immature Plumages.<\/em><\/strong>\u00a0 Juveniles have roughly the same overall plumage pattern as nonbreeding adults, but with fine white or tan fringes on the back and wings.<\/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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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> anaethetus<\/em>, adult and juvenile, resting on debris.\u00a0 (Carnarvon, Western Australia; March 4, 2018.) \u00a0\u00a9 Greg McKay<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> melanopterus<\/em>, adult and juvenile, resting on driftwood.\u00a0 (Offshore from Cape Hatteras, North Carolina; September 8, 2018.)\u00a0 \u00a9 Kyle Kittelberger<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> anaethetus<\/em>, juvenile.\u00a0 (Capricornia Cays National Park, Queensland, Australia; January 29, 2019.) \u00a0\u00a9 Emma Kennedy<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> anaethetus<\/em>, juvenile.\u00a0 (Lady Musgrave Island, Queensland, Australia; January 9, 2016.) \u00a0\u00a9 Andrew Naumann<\/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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Bridled Tern, O. a.<\/em> antarcticus<\/em>, juvenile.\u00a0 (Adam\u2019s Bridge, Sri Lanka; August 25, 2015.) \u00a0\u00a9 Gehan de Silva Wijeyeratne<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Bridled Tern, O. a.<\/em> antarcticus<\/em>, adult and juvenile, resting driftwood.\u00a0 (Offshore from Nileshwaram, Kerala, India; September 22, 2013.) \u00a0\u00a9 Jainy Kuriakose<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> melanopterus<\/em>, juvenile.\u00a0 (Isla Blanca, Arrecife Alacranes National Park, Yucat\u00e1n, Mexico; July 30, 2019.)\u00a0 \u00a9 Amy McAndrews<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Bridled Tern, O. a.<\/em> melanopterus<\/em>, juvenile.\u00a0 (Offshore from Plaquemines Parish, Louisiana; September 6, 2015.) \u00a0\u00a9 Van Remsen<\/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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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> melanopterus<\/em>, immature.\u00a0 (Isla Grande, Cartagena, Colombia; October 12, 2017.) \u00a0\u00a9 Jeremiah Trimble<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> melanopterus<\/em>, juvenile.\u00a0 (Offshore from Tybee Island, Georgia; August 23, 2003.)\u00a0 \u00a9 Bob Zaremba<\/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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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> melanopterus<\/em>, immature.\u00a0 (Isla Grande, Cartagena, Colombia; October 14, 2017.) \u00a0\u00a9 Jeremiah Trimble<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\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
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Bridled Tern, O. a.<\/em> melanopterus<\/em>, immature.\u00a0 (Isla Grande, Cartagena, Colombia; October 12, 2017.) \u00a0\u00a9 Jeremiah Trimble<\/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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\n\t\t\t\t\t\t\tVoice.<\/em><\/strong>\u00a0 Most common calls are deep and smooth compared with many other terns: