TIIK TI11CK-1]1LI.KD PARTRIDGES. 1 59 



Range. — Central Soulli America, extending westward to 

 Eastern Ecuador and Eastern Peru, eastwards to Borba, Rio 

 Madiera. 



Habits. — Mr. E. Bartlett always found this species in 

 coveys of from ten to twelve birds. In Eastern Peru 

 he met with young birds just able to fly in the morith of 



July. 



X. THE SPOTTED PARTRIDGE. ODONTOPHORUS GUTTATUS. 



Ortyx guttata^ Gould, P. Z. S. 1837, p. 79. 



Odontophorus guitatus^ Gould, Monogr. Odontoph. pt. ii. pi. 



28 (1846) ; Ogilvie-Grant, Cat. B. Brit. Mus. xxii. p. 439 



(1893). 

 Odontophorus consobrinus, Ridgway, P. U. S. Nat. Mus. xvi. p. 



469 (1893). 



Adult Male. — Above very similar to O. guiancnsis, but the 

 nape and mantle olive-brown instead of grey ; forehead and 

 fore-part of crest brownish-black ; hinder-part bright rust-red; 

 cheeks, chin, and throat black ivitli whiie sJiaft-stripes ; general 

 colour of the under-parts broivnish-buff^ with white black-edf^ed 

 spots. Total length, iro inches; wing, 5-9; tail, 2-8; tarsus, 

 17 ; middle toe and claw, 1-9. 



Adult Female. — Differs from the tiiale in having the whole 

 crest brownish-black ;* and well-marked luhUish-bitff shaft- 

 stripes to the feathers of the mantle, which are scarcely visible 

 in fully adult males. Specimens from Costa Rica and Chiriqui, 

 where the ranges of this and the following species overlap, are 

 somewhat intermediate, having the under-parts more or less 

 washed with rufous. 



Range. — Central America ; Southern Mexico to Chiriqui. 



* In younger examples the under-feathers of -he crest are mixed with 

 rufous. 



