Species

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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Wood Sandpiper (Tringa glareola)

Taxonomy:

Tringa Glareola

Linnaeus, 1758, Sweden.

Monotypic.

Descriptive notes: 19–23 cm; 34–98 g; wingspan 54–57 cm. Small, graceful sandpiper; head, neck and breast finely streaked grey-brown; supercilium and throat white; upperparts black-brown with white spots, underparts white. Similar to T....
figure, drawing, illustration of Wood Sandpiper (Tringa glareola)

Western Capercaillie (Tetrao urogallus)

Taxonomy:

Tetrao Urogallus

Linnaeus, 1758, Sweden.

Closely related to T. urogalloides, with which very commonly hybridizes where ranges overlap in Siberia (in one area up to 12% of males reported to...

Descriptive notes: 80–115 cm, female much smaller, 59–64 cm; male 3300–4300 g (up to 6500 g), female 1440–2500 g. Large, very dark grouse, mostly slate-grey with fine vermiculations, blackish on head and neck; breast glossy...
figure, drawing, illustration of Western Capercaillie (Tetrao urogallus)

Mexican Jay (Aphelocoma wollweberi)

Taxonomy:

Aphelocoma wollweberi

Kaup, 1855, #R, Zacatecas, Mexico; restricted to Valparaíso Mountains.

Until recently considered conspecific with A. ultramarina, but molecular evidence#R points to a...

Descriptive notes: 28–32 cm; male 84–150 g, female 77–137 g. Small, chunky, crestless jay, dull bluish above and dingy below, with fairly heavy, pointed bill; bill length varies significantly with season, shorter in winter. Nominate race...
figure, drawing, illustration of Mexican Jay (Aphelocoma wollweberi)

Pacific Wren (Troglodytes pacificus)

Taxonomy:

Troglodytes hyemalis [sic] (var. pacificus

) S. F. Baird, 1864, Simiahmoo, Puget Sound, Washington.

Until recently considered conspecific with T. troglodytes and T. hiemalis, given great morphological consistency, but acoustic and...

Descriptive notes: 9–11 cm; 8–12 g. Small, dark wren with short tail, small bill and pale supercilium, chin and throat. Upperwing-coverts rufous-brown with darker barring; primaries and secondaries brown, barred darker; upper breast light wood...
figure, drawing, illustration of Pacific Wren (Troglodytes pacificus)

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)