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{"id":123402,"date":"2022-02-20T20:50:08","date_gmt":"2022-02-21T00:50:08","guid":{"rendered":"https:\/\/birdfinding.info\/?p=123402"},"modified":"2022-02-20T21:28:29","modified_gmt":"2022-02-21T01:28:29","slug":"yellow-crowned-bishop","status":"publish","type":"post","link":"https:\/\/birdfinding.info\/yellow-crowned-bishop\/","title":{"rendered":"Yellow-crowned Bishop"},"content":{"rendered":"\t\t
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\u00a9 tjeerd<\/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 Rory Nefdt<\/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 \u21d2<\/em><\/strong> \u00a0The eastern, typical form of Yellow-crowned Bishop<\/strong> is uncommon overall, but locally common in a few widely separated parts of eastern and southern Africa.\u00a0 Especially numerous and widespread in northeastern South Africa in the countryside around Johannesburg.\u00a0 Other places where it can often be found include: in Ethiopia, in reedbeds at the south end of Lake Tana and at Debre Birhan; and in Kenya, Nairobi National Park and Lake Baringo.\u00a0 (For the western form, which has been introduced widely outside of Africa, see \u201cYellow-chested Bishop\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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Yellow-crowned Bishop<\/strong><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Euplectes afer<\/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: Ploceidae<\/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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Sub-Saharan Africa.<\/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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Approximate distribution of the Yellow-crowned Bishop, both \u201cYellow-chested\u201d and \u201cYellow-crowned\u201d forms.\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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Comprises two distinct forms which may be best regarded as separate species:<\/p>

\u201cYellow-chested Bishop\u201d<\/strong><\/a> (afer<\/em>): western and central Africa from Mauritania east to southwestern Sudan and south to northwestern Angola and the western and northern Democratic Republic of the Congo.\u00a0 Introduced to the Iberian Peninsula, Puerto Rico, Jamaica, the United Arab Emirates, and Kuwait.\u00a0 This form is discussed separately in more detail here<\/strong><\/a>.<\/p>

\u201cYellow-crowned Bishop\u201d<\/strong> (taha<\/em> plus strictus<\/em>): eastern and southern Africa.<\/p>

Strictus<\/em> inhabits the highlands of northern Ethiopia and adjacent eastern Sudan.<\/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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Taha<\/em> is found mainly in savannas of east Africa from southeastern Sudan and southern Ethiopia south patchily through the eastern Democratic Republic of the Congo, Uganda, Kenya, and Tanzania; and in southern Africa from southern Angola and northern Namibia east through northern Botswana, southern Zambia, and most of Zimbabwe and northern and eastern South Africa.<\/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>

Males in breeding plumage are unique and unmistakable.\u00a0 The two forms differ conspicuously.\u00a0 The breeding male \u201cYellow-crowned\u201d is black overall with vivid yellow crown and back.\u00a0 For \u201cYellow-chested\u201d, see below.<\/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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\u201cYellow-crowned Bishop\u201d, E. a. taha<\/em>, male in breeding plumage.\u00a0 (Amboseli National Park, Kenya; January 1, 2021.)\u00a0 \u00a9 Ginger Spinelli<\/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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\u201cYellow-crowned Bishop\u201d, E. a. taha<\/em>, male displaying.\u00a0 (Rietvlei Nature Reserve, Gauteng Province, South Africa; January 24, 2016.)\u00a0 \u00a9 Ruben Gaasenbeek<\/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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When displaying, the male puffs out its plumage, at times appearing almost spherical.\u00a0 When raised, the long yellow feathers on its back take on the appearance of big yellow backpack.<\/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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\u201cYellow-crowned Bishop\u201d, E. a. taha<\/em>, male in breeding plumage.\u00a0 (Swartkoppies, Free State, South Africa; February 1, 2020.)\u00a0 \u00a9 Richard Gray<\/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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\u201cYellow-crowned Bishop\u201d, E. a. taha<\/em>, male in breeding plumage.\u00a0 (Alberton, Gauteng Province, South Africa; December 13, 2017.)\u00a0 \u00a9 John Watson<\/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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Females and males in basic plumage are sparrow-like, with heavily streaked brown upperparts and lightly-streaked pale underparts.<\/p>

The facial markings are strong: a bold buffy or yellowish eyebrow contrast with a thinner, but pronounced, dark eyeline, both extending far behind the eye.\u00a0 The crown is blackish with fine pale streaks.<\/p>

Males in transition into and out of breeding plumage go through various irregular blotchy stages.<\/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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\u201cYellow-crowned Bishop\u201d, E. a. taha<\/em>, basic plumage.\u00a0 (Wakkerstroom Biosphere Reserve, Mpumalanga Province, South Africa; November 10, 2016.)\u00a0 \u00a9 Fr\u00e9d\u00e9ric Pelsy<\/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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\u201cYellow-crowned Bishop\u201d, E. a. taha<\/em>, basic plumage.\u00a0 (Wakkerstroom Biosphere Reserve, Mpumalanga Province, South Africa; November 29, 2017.)\u00a0 \u00a9 Holger Teichmann<\/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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\u201cYellow-chested Bishop\u201d<\/a>.<\/em><\/strong>\u00a0 The \u201cYellow-chested\u201d form is very similar to typical Yellow-crowned, except that breeding males have more yellow on the neck that extends onto the chest.<\/p>

There may be differences in basic plumage as well, though both forms vary so apparent differences are difficult to assess.\u00a0 Based on available photos, \u201cYellow-chested\u201d tends to show contrast between a white belly and buffy sides and chest, with fine or faint streaking, whereas \u201cYellow-crowned\u201d has uniformly buffy underparts with darker, bolder streaks.<\/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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\u201cYellow-chested Bishop\u201d, E. a. afer<\/em>, male in breeding plumage.\u00a0 (Vila Franca de Xira, Portugal; July 13, 2013.)\u00a0 \u00a9 Ant\u00f3nio Gon\u00e7alves<\/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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\u201cYellow-chested Bishop\u201d, E. a. afer<\/em>, basic plumage.\u00a0 (Estu\u00e1rio do Tejo Nature Reserve, Portugal; July 7, 2021.)\u00a0 \u00a9 Rui Pereira<\/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 The calls of the \u201cYellow-crowned Bishop\u201d are structurally similar to the calls of the \u201cYellow-chested\u201d form, but appear to be harsher and drier, more percussive.\u00a0 In breeding display, males give streams of \u201cticking\u201d calls that alternately accelerate and decelerate: