Species

HBW Alive provides full accounts for every bird species known to science up to June 2013, including distribution maps and color illustrations. Explore these sample species to better understand the monumental work that lies behind these pages.

Come back often! The sample species are being rotated every month.

Zapata Rail (Cyanolimnas cerverai)

Taxonomy:

Cyanolimnas cerverai

Barbour and J. L. Peters, 1927, Santo Tomás, Península de Zapata, Cuba.

Monotypic.

Descriptive notes: 29 cm. Apparently almost flightless; wings very short; tail short and decomposed. Dark rail without streaks or spots, faintly barred on lower belly and thighs and has white undertail-coverts. Sexes alike. Easily separable by plumage...
figure, drawing, illustration of Zapata Rail (Cyanolimnas cerverai)

Horned Curassow (Pauxi unicornis)

Taxonomy:

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)

Central American Pygmy-owl (Glaucidium griseiceps)

Taxonomy:

Glaucidium griseiceps

Sharpe, 1875, tropical lowlands of Alta Vera Paz, Guatemala.

Considered a member of G. minutissimum complex, which includes also G. palmarum, G. sanchezi, G. parkeri and G....

Descriptive notes: 13–18 cm; male 50·6–58·8 g, female c. 56 g. Very small pygmy-owl; crown and nape brown-grey to grey-brown; forecrown with fine pale buff to whitish spots (can extend back to nape); nape with dark “...
figure, drawing, illustration of Central American Pygmy-owl (Glaucidium griseiceps)

Gyrfalcon (Falco rusticolus)

Taxonomy:

Falco rusticolus

Linnaeus, 1758, Sweden.

Closest to F. cherrug; genetic data indicate that these two, along with F. biarmicus and F. jugger, form a group of closely...

Descriptive notes: 48–60 cm; male 769–1450 g, female 1130–2150 g; wingspan 105–135 cm. The largest Falco, with larger head, deeper chest, relatively short but broad outer wings and longer tail than other large falcons....
figure, drawing, illustration of Gyrfalcon (Falco rusticolus)

Red-billed Hornbill (Tockus erythrorhynchus)

Taxonomy:

Buceros erythrorhynchus

Temminck, 1823, Mora, Cameroon.

Closest to T. monteiri, but close also to T. flavirostris, T. leucomelas and T. deckeni (and presumably jacksoni...

Descriptive notes: 35 cm; male 124–185 g, female 90–151 g (nominate), male 182 g, female 148 g (race kempi), male 128 g, female 125 g (race ruahae). Small, black-and-white hornbill with spotted wing-coverts, white in outer tail, and long,...
figure, drawing, illustration of Red-billed Hornbill (Tockus erythrorhynchus)