GALLlNACEiE. 345 



There is a singular conformation in the trachea of several of them. 

 They live in the woods, feed on buds and fruit, perch and build on 

 trees, are very social and easily domesticated. Gmelin and Latham 

 have divided them into Hoccos and Yacous, but upon very undeter- 

 minate characters. We subdivide them in the following manner. 



The Hoccos, properly so called^ Buft\ Mitous, of Brazil, &c. 



Crax, Lin. 



Have a strong beak, its base surrounded with a skin, which is 

 sometimes highly coloured, in which the nostrils are piercedj on 

 the head is a tuft of long, narrow, erect feathers, curled at the 

 tips. They are the size of Turkeys, and like them fly up into trees. 

 They are bred by the Americans; and individuals are sometimes sent 

 to Europe, so variously coloured, that we are at a loss how to cha- 

 racterize their species. The most common, or 



Crax alector, L.j Mitou-Poranga, Marcgr. ; Buff. Ois., II, pi. 

 xiii; Vieill. Galer., 199. Black; the lower part of the belly 

 white; cera of the beak, yellow. The trachea makes but one 

 slight curve before it enters the thorax. Some of these birds, 

 such as 



Crax globicera, L., Enl. 86; Edw., 295, 1, have a larger or 

 smaller globular tubercle on the base of the beak. Among both 

 of these species individuals are to be found in which the body is 

 irregularly striped with white or fawn colour. Albin., II, 32.(1) 

 The whole upper part is sometimes fawn coloured. (2) Those of 

 Peru, 



Crax rubra, L.., Enl. 125,areallof a vivid chesnutcolour above, 

 the head and neck being variegated with black and white.(3) 



OuRAx, Cuv. 



The Pauxi(4) have a shorter and thicker beak, the membrane of its 

 base, as well as the greater part of their head being covered with 

 a short and dense plumage resembling velvet. The most common 

 species, 



Craxpauxi, L.; Pierre, &c.; Enl. 78; Vieill. Galer. 200 (The 

 Stone Bird), has an oval tubercle on the base of its beak, of a 



(1) This appears to be the true Mexican Hoazin of Hernandez. 



(2) Such is the female described by Azzara, Voy. IV, p. 169. From the ac- 

 counts of other travellers, it appears that the females, also, are fawn coloured. 



(3) See also Crax fasciolata, Spix, LXII, a; C. Blumenbackii., Id, LXIV. Add, 

 Crax globulosa. Id. LXV and LXVI^ C. rubirostris, Id., LXVII. 



(4) Paiixl'ia the name by which Hernandez designates them. Ouraxy the Athe- 

 nian name for the Heath-Cock. 



Vol. I. 2 T 



