CHOLIBA SCREECH OWL 



Sexes alike. Chocolate brown above, includ- 

 ing sides of face, neck and throat; conspicuous 

 buffy white eyebrows; a patch of white below 

 cheeks extending behind ear coverts; foreneck 

 white; remaining under parts tawny buff sepa- 

 rated from neck by a broad band of brown cover- 

 ing chest. 



A large owl without ear tufts and with con- 

 spicuous white eyebrows and a broad brown 

 band covering chest. I am informed by Mr. 

 Ludlow Griscom that there are two races in the 

 Zone, the darker form (P. p. satumtior) occurring 

 on the Pacific side. 



3. Otus choliba luctisonus Bangs 

 Choliba Screech Owl 



Otus choliba RIDGWAY, Birds of N. and M. Amer., VI, 

 p. 711, 1914; STONE, Proc. Phila. Acad. Nat. Sci,, 1918, p. 

 251- 



Sexes alike. Length, about 228 mm. (9.00 

 in.); tail, about 90 mm. (3.50 in.). Above light 

 grayish brown, entirely vermiculated with dusky 

 mottled with brownish buff and narrowly 

 streaked with blackish brown on head, and more 

 sparsely on back; wing coverts with conspicuous 

 white spots; wing quills banded with cinnamon, 

 the bands outlined and mottled with dusky; tail 

 crossed by bands of dusky and cinnamon; face 

 including eyebrows dull buff finely barred with 

 brown; rim around eye brown; facial rim brown- 

 ish black; ear tufts finely barred buff and brown 

 149 



