. The Cambridge natural history. Zoology; Zoologia Geral. 242 GALLIFORMES young. The syrinx has one pair of muscles inserted on the distal end of the trachea. The Hoatzin or " Anna," which is aljout the size of a Pigeon, ranges from Colombia to the Lower Amazons and Bolivia, where it haunts the sides of lagoons, creeks, and rivers covered with a thick growth of low trees or bushes, which project over the stream or the mud left bare by the tide. In these tangled soli- tudes it skulks during the heat of the day, while at other times it may be observed squatting n})on the branches,mainl
. The Cambridge natural history. Zoology; Zoologia Geral. 242 GALLIFORMES young. The syrinx has one pair of muscles inserted on the distal end of the trachea. The Hoatzin or " Anna," which is aljout the size of a Pigeon, ranges from Colombia to the Lower Amazons and Bolivia, where it haunts the sides of lagoons, creeks, and rivers covered with a thick growth of low trees or bushes, which project over the stream or the mud left bare by the tide. In these tangled soli- tudes it skulks during the heat of the day, while at other times it may be observed squatting n})on the branches,mainly supported on the patch of hardened skin already mentioned. When disturbed the bird flies off awkwardh^ for some forty yards with a violent flapping motion, or progresses by leaps from bough to bough, erecting its crest and expanding its wings and tail. The note is sharp and shrill, and has been described as a hissing screech. The food consists of leaves and fruit of the prickly Dre'pam)- carpus lunulatus, of the Aroid Montrichardia arhorescens, of Avicennia oiitida, and of a species of Psidium. The conspicuous nest,placed on low trees or shrubs, is a loose platform of spiny twigs and sticks with a softer lining, which contains from three to five yellowish-white eggs of a Eail-like appearance, spotted with reddish-brown and lilac. The young, which can see and run as soon as they are hatched, have a claw on both index and pollex, by means of which they creep about the tliickets and hook themselves over the branches, assisted by the bill and feet. They can also swim and dive. A strong musky odour is given off by the adults, whence they are termed " Stinking Pheasants " in Guiana. The male has been asserted to be Fig. 49.—Hoatzin. Opisthocomus 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 th
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