cherrie;: ornithology of thk Orinoco region. 357 



PiPiLE CUMANENSis (Jacquin). 

 Crax cumanoisis Jacq., Beytr. 1784. p. 25. 

 Pipile ciimanensis Berlepsch & Hartert, p. 121. 



Native name Guacharaca. Common on the upper river from above 

 the falls of Maipiires onward. 



Female (No. 11876 Cherrie Coll.) 



Eye chestnut brown ; bill slate black at tip and pearl blue from 

 anterior point of nostrils and gonys to base, where the color blends 

 with the pale pearl grey of the bare skin on side of the face; feet 

 bright brick red. Chin and upper throat azure blue, the color darkening 

 to slate black on lower part of bare neck and on the wattles. 



The nesting season probably begins in February as a female shot 

 February 17, 1899, was laying, as indicated by the active condition 

 of the ovaries. 



The Guacharacas like the Paujis are much sought after by hunters. 



TETRAONIDAE— PARTRIDGE, QUAIL, ETC. 



Odontophorus gujanensis (Gmelin). 

 Tetrao gujanensis Gm., Syst. Nat. I. 1788. p. 767. 

 Odontophorus gujanensis Berlepsch & Hartert. p. 121. 



Not observed by the writer, but recorded by Berlepsch and Har- 

 tert from Suapure on the Caura River. 



Eupsychortyx sonnini (Temminck). 

 Perdix sonnini Temm., Hist. Nat. Gen. Pig. III. 1815. p. 451. 

 Eupsychortyx sonnini Berlepsch & Hartert, p. 121. 



Native name Perdiz. Common everywhere throughout the savanna 

 regions of the lower and middle Orinoco, but not observed above the 

 falls. 



OPISTHOCOMIDAE— THE HOATZIN. 



Opisthocomus hoazin (Miiller). 

 Phasianus hoazin Miill., Syst. Nat. Supplement, 1776. p. 125. 

 Opisthocomus cristatus Berlepsch, Ibis 1884. p. 440 (Angostura). 

 Opisthocomus hoazin Berlepsch & Hartert, p. 122. 



Native names Guacharaca de Agua, Chinchena. Common 

 along the thickly wooded banks of the Orinoco and its tributaries 



