BIRDS OF WESTERN COLOMBIA. 1203 



" Ii'is brown, feet whitish, maxilla black with base red, mandible 

 black." 



Colombian examples of this w'ide-spread species are apparently 

 not different from others taken in Cayenne, Brazil, Jind Vene7Aieln. 

 There is perhaps generally more rosy suffusion on the foreneck, 

 though this is not quite constant. 



182. MiCRASTUR GUERILLA INTERSTES Bangs. 



[Micrastur guerilla Cassin, Proc. Acad. N. vSci. Philad. iv. p. 87 

 (1848.— Jalapa, Mexico).] 



Mic7-astu7^ interstes Bangs, Auk, xxiv. p. 289 (1907. — La 

 Estrella, Cartago, Costa Rica). 



No. 2330. 2 ad. Novita, Rio Tamnna (150 ft.), 24.xi.08.— 

 Wing 175; tail 165; bill (from cere measured with chord) 

 18 mm. 



*' Iris and feet yellow^, bill black." 



This specimen, a perfectly adult bird in the " plumbeous phnse," 

 except in being slightly lai'ger, agrees with an adult from Mirnmnr 

 (Chiriqui) and a couple from Cartago, Costa Rica {Uv cleric ood). 

 All the under surface, from the foreneck to the tail-coverts, is 

 closely barred black and white, as described by Mr. Bangs. The 

 sides of the head and the throat are pale smoky grey (the former 

 somewhat darker than the latter), exactly as in the Central 

 American skins ; but the scapulars and, to a lesser degree, the 

 wings are more strongly tinged with chocolate-brown. 



M. g. zonothorax Cab.* from Venezuela, of which I have 

 examined six specimens procured in the mountains around 

 Merida, differs from the Colombian and Costa Rican birds in 

 having the sides of the head and the throat dull rufescent brown, 

 and the quills more or less rufous-brown. Moreover, the mantle 

 is generally washed with chocolate -brown, whereby its close 

 relation to M. ruficollis Vieill. is supported. That zonothorax 

 is merely a race of M. guerilla is clearly shown by a specimen 

 from Paramba, N.W. Ecuador, in the Tring Museum, which 

 combines the dull rufescent brown cheeks and throat with the 

 blackish wings. 



M. g. interstes ranges from Costa Rica and Chiriqui sol^thwards 

 to Western Ecuador (Nanegal, Paramba, Surupata, etc.). 



183. AcciriTER suPERCiLiosus Linn. 



Falco srcjjerciliosus Linnjeus, Syst. Nat. 12, i. p. 128 (1766. — • 

 Surinam : juv.). 



Accipiter times Sclater &, Salvin, P. Z. S. 1879, p. 541 

 (Remedios). 



No. 2628. 2 imm. Tado (230 ft.), 30.iv.09.— Wing 149; 

 tail 105 ; bill 13 mm. 



" Iris orange, feet yellow, bill black, base yellow." ' 



* Cliinacocercus zonothorax Cabaiiis, Jouvn. f. Oni. xiii. p. 406 (1865. — Puerto 

 Cabullo, N. Venezuela). 



