1919*] Ecuador^ Peru, Bolivia, and Argentina. 289 



Ictinia plnmbea. 



Falcu plumbeu Gmel. Syst. Nat. i. 1788, p. 283 : Cayenne. 



Ictinia plum/jea ^c\. & Salv. P. Z. S. 1879, p. 638: Prov. 

 Yungas, Chiquitos, and Moxos, Bolivia ; Allen, Bull. Araer. 

 Mus. ii. 1889, p. 105 : Lower Beni River and Mapiri, 

 Bolivia. 



No. 1245. ? . Bellavista, Bolivia, 1400 metres, 10 Oct. 



1900. '^Alcon." "Iris red; feet orange: bill black'' 

 (P. O. Simons). 



This specimen is in the fully adult plumage and identical 

 witli others in the British Museum from various localities in 

 Soutli and Central America. It may be mentioned, how- 

 ever, that some individuals are paler grey than others, but 

 these are not restricted to any particular geographical area. 



Falco fusco-caerulescens. 



Fa/co Jascu-ca'rnlcsceiis Vieill. N. Diet, d'llist. Nat. xi. 

 1817, p. 90: Paraguay. 



Hypotriorcliis feinoralis Scl. & Salv. P. Z. S. 1879, p. 638 : 

 Bolivia; Tacz. Orn. Per. i. 1884, p. 151 : Paucartambo and 

 Tumbez. 



No. 379. c? • Colta, Riobaniba, Ecuador, 3100 metres, 

 1 Jan. 1899. " Gavalon." 



No. 1695. ? . Chosica, Peru, 850 metres, 3 Oct. 1900. 

 "Alcon." 



No. 3174. (^ . Aullagas, Bolivia, 3700 metres, 17 Oct. 



1901. "Alcon." '^' In the act of eating a Sparrow on the 

 ground" [P. O. Simons). 



I have compared these three specimens, which arc fully 

 adult, with a largo series of others in the British Museum, 

 and find them to be identical. 



Falco rufigularis pax. 



Falco rafiyntaris [xtii Chubb, Bull. Brit. Orn. Club, xxxix. 

 Nov. 1918, p. 22. 



No. 2918. c? adult, ('haruplaya, Bolivin, 1300 metres, 

 1 June, 1901. ■' Alconcito." ''Iris brown; feet orange: 

 bill black " (P. 0. Simom). 



