186 



SUPERCILIOUS GUAN. 



municating with the beak, which has a membrane 

 about two inches long, descending from the base 

 of its lower mandible, and disappearing when the 

 bird is frightened : the base of the beak is furnished 

 with very short, straight, black feathers. 



It is a native of Paraguay, occurring in the 

 vicinity of rivers and lakes, but is more abundant 

 among trees : it lays eight eggs about October : 

 its cry consists in a repetition of the word yac^ or 

 occasionally from whence its name is derived. 



SUPERCILIOUS GUAN. 

 (Penelope superciliaris.) 



Pe. vertice cerviceque Jusco-nigris^ dor so cinereO'Virescentij peri' 

 nis griseo marginatis, tectricibus pennisque alarum secundariis 

 virescentibus Julvo-marginatis y abdomine uropygioque rujis, 



Guan with the crown and top of the neck brown-black 5 the 

 back greyish-green, the feathers edged with grey ; the wing- 

 coverts, and secondary quills, greenish, edged with fulvous ; 

 the abdomen and rump rufous. 



Penelope superciliaris. Temm. Tig. Ind. p, 6Q3, 



Penelope Pean. Temm. Pig. et GalL 3. p. 72. 



- I 'iThe feathers of the forehead and of the top of 

 the head, in this species, are not at all elongated : 

 the occiput and the nape are of a brown-black : 

 the forehead possesses a few scattered hairs : from 



