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.

Central American Pygmy-owl (Glaucidium griseiceps)


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)

Eastern Hooded Pitta (Pitta novaeguineae)


Pitta novae-guineae

S. Müller and Schlegel, 1845, Manokwari, north-west New Guinea.

Hitherto considered conspecific with P. sordida and P. rosenbergii, but differs from P. rosenbergii in characters given under...

Descriptive notes: 16–19 cm; 40–82 g (nominate), 67·5– 71·5 g (race mefoorana). Adult has black hood and generally green body and upperparts, with a brilliant turquoise-blue shoulder patch and throatband at base of hood, as well as a narrow glittering blue...
figure, drawing, illustration of Eastern Hooded Pitta (Pitta novaeguineae)

Zeledon's Antbird (Hafferia zeledoni)


Myrmeciza zeledoni

Ridgway, 1909, Guayabo, Costa Rica.

Until recently considered conspecific with H. immaculata, but treatment as separate species supported by analysis of morphology, biometrics and...

Descriptive notes: 17–19 cm; 39·9–55·5 g. Bare periorbital area wide, pale blue. Male basically all black, with variable white anterior lesser wing-coverts (concealed), wing-bend and edges to alula. Female largely dark brown, with sides of head, lores and...
figure, drawing, illustration of Zeledon's Antbird (Hafferia zeledoni)

Mountain Plover (Charadrius montanus)


Charadrius montanus

J. K. Townsend, 1837, central tableland of the Rocky Mountains = near Sweetwater River, Wyoming, USA.

This species, along with closely related C. asiaticus and C. veredus, sometimes placed in genus Eupoda. Monotypic.

Descriptive notes: 21–23·5 cm; male 67–124 g, female 73–132·5 g; wingspan 47 cm. Bright white forehead and supercilium, black frontal bar and black lores; never has black on breast; underparts white, washed buff on sides;...
figure, drawing, illustration of Mountain Plover (Charadrius montanus)

Gyrfalcon (Falco rusticolus)


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)