284 Mr. C. Chubb on Birds from [Ibis, 



Spizaeteus isidori Boiiap. Cousp. A v. i. 1850, p. 29: 

 Bogota; Scl. & Salv. P.Z. S. 1879, p. 450: Cauca Valley, 

 Colombia. 



Lopholriorchis isidori Sharpe, Cat. B. Brit. Mus. i. 1874, 

 p. 256 : Bogota. 



No. 2947. (5" imni. Charuplaya, Bolivia, . 1350 metres, 

 1 July, 1901. ''Aquilla." "Came into the yard for 

 chicken " (P. 0. Sinio?is). 



a. cJ adult. Baesa, Eastern Ecuador, 6000 ft., April 

 1914. " Iris brown ; feet yellow ; bill slate-colour " 

 [W. GoodfpJhw). 



h. S j"v. Baesa, May 1914, 6000 ft. " Iris brown ; feet 

 yellow; bill slate-colour " [W. Goodfelluin). 



The adult male from Baesa is in the fully adult black 

 plumage, which includes the sides of the face, back, wings, 

 and tip of tail on the upper sui'face, and tiie throat, axil- 

 laries, flanks and thighs on the under parts ; breast, 

 abdomen, under tail-coverts, and under wing-coverts dark 

 chestnut with black .shaft-lines: basal portion of tail 

 mottled with dark grey both above and below, apical 

 portion below blackish brown. 



The young male from Baesa has still got downy tijis to 

 the tail-feathers, although it shows a further advance tlian 

 the others in regard to the greater development of the* 

 feathers and their darker colour on the sides of the body, 

 thighs, axillaries, and under wing-coverts. Wing 515 mm., 

 tail 295. 



Another young bird, unsexed, in very similar plumage, 

 was collected at Yauaycu, Ecuador, by the late Clarence 

 Buckley and presented to the British Museum by Messrs. 

 Salvin & Godman, b\it differs in being darker on the top of 

 the head, hind-neck, back, upper tail-coverts, sides of face, 

 and sides of neck. The sides of the body and thighs are also 

 darker, the axillaries and under wing-coverts more fulvous, 

 and the shaft-lines more pronounced. 



The immature male. No. 2947 from Bolivia, has lost 

 a great deal of the brown plumage on the upper surface, 



