156 Allen's naturalist's library. 



of the Black-eared Partridge. Mr. C. W. Richmond writes 

 that he saw a flock of rather over a dozen in the forests on the 

 Escondido. When approached, the birds flew into the sur- 

 rounding trees and afterwards off into the woods two or three 

 at a time. Two were secured. 



IV. THE CHESTNUT-EARED PARTRIDGE. ODONTOPHORUS 

 ERYTHROPS. 



Odontophoriis erythrops^ Gould, P. Z. S. 1859, p. 99; Ogilvie- 

 Grant, Cat. B. Brit. Mas. xxii. p. 435 (1893). 



Adult Male. — Like O. juelanotis, but distinguished by its darker 

 plumage ; the top of the head dark brotvn, contrasting with 

 the rufous chestnut eyebrow-stripes ; stripe from the gape to 

 the ear-coverts chestnut ; chest and under-parts darker chest- 

 nut. Size the same. 



Adult Female. — Probably almost similar in plumage to the 

 male, but no examples in which the sex is indicated have been 

 examined. 



Range. — Western South America ; Ecuador. 



V. THE CHESTNUT-THROATED PARTRIDGE. ODONTOPHORUS 

 HYPERYTHRUS. 



Odontophorus hyperythrus^ Gould, P. Z. S. 1857, p. 223; 



Ogilvie-Grant, Cat. B. Brit. Mus. xxii. p. 436 (1893). 

 Odontophorus hypospodius, Sclater and Salvin, Nomencl. Av. 

 Neotrop. p. 163 (1873). 



Adult Male. — General colour above olive-brown, slightly 

 washed with rufous, and finely mottled with black ; eyebrow- 

 stripes, chin, th'oat, and under-parts deep rust-red, paler towards 

 the middle ; thighs and undertail-coverts reddish-brown mottled 

 with black. Total length, 11 inches; wing, 59; tail, 2*4; 

 tarsus, 2 ; middle toe and claw, 2*15. 



Adult Female. — Differs from the male in having the breast and 

 rest of the under-parts dark grey, shading into blackish-grey on 

 the flanks. Measurements somewhat smaller. 



