HBW Alive provides full accounts for every bird species known to science up to June 2013, including distribution maps and color illustrations. Check out these recently updated species or search the species you want.

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Snowy Owl (Bubo scandiacus)


Strix scandiaca

Linnaeus, 1758, Lapland, north Finland.

Previously placed in monotypic genus Nyctea, primarily on basis of skull characters; recent genetic study, however, indicated that it is part of...

Descriptive notes: Male 53–64 cm, 710–2500 g; female 59–66 cm, 780–2950 g; wingspan 125–166 cm. Large white owl with small eyes, rudimentary ear tufts normally not erect. Male almost entirely white, sometimes with narrow...
figure, drawing, illustration of Snowy Owl (Bubo scandiacus)

Horned Grebe (Podiceps auritus)


Colymbus auritus

Linnaeus, 1758, Europe and America; restricted to Vaasa, Finland.

Sometimes placed in genus Dytes, although actually closer to P. grisegena and P. cristatus than to other Podiceps. Has...

Descriptive notes: 31–38 cm; 300–470 g. Nominate race in breeding plumage Another close view An adult settling on nest has blackish cap, hindneck and upperparts; upperwing blackish brown to brown-grey, with large white panel over...
figure, drawing, illustration of Horned Grebe (Podiceps auritus)

Northern Marquesan Reed-warbler (Acrocephalus percernis)


Conopoderas percernis

Wetmore, 1919, Nuku Hiva, Marquesas, Polynesia.

Until recently considered conspecific with A. mendanae, but molecular analysis#R indicates that...

Descriptive notes: 18–22 cm. A large, bulky reed-warbler, bright yellow below, with greenish upperparts, medium-length, slightly curved bill, and yellow-tipped tail. Probably indistinguishable from allopatric A. mendanae in a field situation. Sexes similar....
figure, drawing, illustration of Northern Marquesan Reed-warbler (Acrocephalus percernis)

Golden-collared Manakin (Manacus vitellinus)


Pipra vitellina

Gould, 1843, Panama City, Panama.

Phylogenetic study#R supports sister relationship between present species and W races of M. manacus....

Descriptive notes: 10–11 cm; male 19·3 g, female 17·1 g. Male nominate race has black cap, golden-yellow on rest of head, upper mantle, shoulders, and chin to breast, throat feathers elongated (projected forwards well beyond bill tip...
figure, drawing, illustration of Golden-collared Manakin (Manacus vitellinus)

Horned Curassow (Pauxi unicornis)


Pauxi unicornis

J. Bond and Meyer de Schauensee, 1939, above Bolívar, near Palmar, Yungas de Cochabamba, Bolivia.

Has been considered a race of P. pauxi, and until very recently was treated as conspecific with P. koepckeae, but differs from latter in...

Descriptive notes: 85–95 cm; male c. 3850 g; female c. 3600 g. Large, virtually all-black cracid with white vent and tip to tail. Bright red bill and pale blue casque, which grows up to 6·3 cm. Legs normally pale red, but...
figure, drawing, illustration of Horned Curassow (Pauxi unicornis)