. The birds of British Guiana, based on the collection of Frederick Vavasour McConnell. Birds. DONACOBIUS. 373 Genus DONACOBIUS Swains. Donacohius Swainson, Zool. lUustr. (2nd ser.) ii. pi. 72, 1830. Type -D. atricapillus (Linn.).. Fig. 144.—To show the form of the bill and nostrils. In this genus tiie bill is long, decurved and somewhat hooked at the tip, the depth at the posterior portion of the nostrils is about equal to the width, and the nostrils are exposed and oval in shape. The wing is rounded, the fourth, fifth, and sixth primaries are longest and equal, the third aboilt equal to the
. The birds of British Guiana, based on the collection of Frederick Vavasour McConnell. Birds. DONACOBIUS. 373 Genus DONACOBIUS Swains. Donacohius Swainson, Zool. lUustr. (2nd ser.) ii. pi. 72, 1830. Type -D. atricapillus (Linn.).. Fig. 144.—To show the form of the bill and nostrils. In this genus tiie bill is long, decurved and somewhat hooked at the tip, the depth at the posterior portion of the nostrils is about equal to the width, and the nostrils are exposed and oval in shape. The wing is rounded, the fourth, fifth, and sixth primaries are longest and equal, the third aboilt equal to the seventh, and the second about equal in length to the secondaries. The tail is long and graduated, the outer feather on each side being about three-sevenths the length of the middle ones. The tarsus is about one-third longer than the exposed culmen, which is about equal in length to the middle toe without the claw. Coloration : male and female similar. 577. Donacobius atricapillus. Black-capped Mockikg-Thrush. Tvrdus atricapilla Linn. Nat. i. p. 295, 1766 (Brazil). Donacohius atricapillus Cab. in Sohomb. Reis. Gruian. iii. p. 674, 1848; Sharpe, Cat. B. Brit. Mus. vi. p. 364, 1881; Salvin, Ibis, 1885, p. 199; Beebe, Our Search for a Wilderness, p. 376, 1910 (Abarv Savannas); Brabourne & Chubb, B. S. Amer. i. p. 342, no. 3498, 1912. Adult Crown of head, sides of face, and hind-neck black ; back, scapulars, upper wing-coverts, and flight-quills coffee- brown, rather darker on the last; paler and more umber-brown on the lower back, rump, and upper tail-coverts ; base of primary and outer secondary quills white, which graduates and becomes much less in extent on the outermost primary; tail blackish tipped with while, the outermost feather on each side entirely. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original
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Keywords: ., bookauthormcco, bookcentury1900, bookdecade1910, booksubjectbirds
