BIRDS OF NORTH AND MIDDLE AMERICA. 711 



Adult male 'i— Wing, 171; tail, 86; culmen, from cere, 16.° 

 Adult female.— Length, (skin), 245; wing, 173-178.5 (175.7); tail 

 82-83.5 (82.7); culmen, from cere, 15.5-16 (15.7).'' 



Highlands of Costa Rica (Santa Ana; Eeytes, near Cartago; San 

 Jose) and northward through Nicaragua (Acoyapa; Momotombo), 

 Salvador (Volcan de San Mguel), etc., to Oaxaca (Cacoprieto).'^ 



Scops coo-peri Ridgway, Proc. U. S. Nat. Mus., i, eig. 8, Aug. 15, 1878, 116 (Santa 

 Ana, Costa Rica; coll. U. S. Nat. Mus.).— Gurney, Cat. Birds of Prey, 1894, 

 37.— Salvin and Godman, Biol. Centr.-Am., Aves, iii, 1897, 19 (Cacoprieto, 

 Oaxaca; Volcan de San Miguel, Salvador; Acoyapa and Momotombo, Nica- 

 ragua; Santa Ana and San Jose, Costa Rica). 



{Scops] cooperi Sharpe, Hand-list, i, 1899, 289. 



Megascops cooperi Zeledon, Proc. U. S. Nat. Mus., viii, 1885, 111 (Costa Rica); 

 Anal. Mus. Nac. Costa Rica, i, 1887, 125 (Costa Rica).— Stone, Proc. Ac. Nat. 

 Sci. Phila., 1890, 129.— Hasbrouck, Auk, x, 1893, 251, 263. 



Mlegascops] cooperi Brewster, Auk, v, 1888, 88, in text. 



Otus cooperi Carriker, Ann. Carnegie Mus., vi, 1910, 475 (Costa Rica). 



OTUS CHOLffiA (Vieillot). 



CHOLIBA SCREECH OWL. 



Brown (usual) phase. 



Adults (sexes alike). — Upper parts light grayish brown to nearly 

 verona brown, densely vermiculated with dusky, the feathers with 

 more or less distinct irregular mesial streaks or spots of blackish, 

 especially on crown and back, and more or less mottled and barred 

 (mostly on concealed portion of feathers) with pale brownish buff; 

 across nape a more or less distinct broken band of pale buffy or whitish 

 spots (but these sometimes obsolete) ; outer webs of exterior scapulars 

 mostly white, this more or less barred with black; outer webs of outer- 

 most middle wing-coverts with a large subtenninal spot of white or 

 buffy, the outermost greater coverts sometimes similarly marked but 

 the white or buffy spots smaller and more irregular; secondaries and 

 inner primaries banded with light dull ciunamon, the bands mai^ined 

 with a narrow line of dusky and mottled or flecked in center with the 

 same, and becoming paler (dull light brownish buffy or dull buffy 

 whitish) toward edge of quills, the longer primaries with the lighter 

 bands or spots immaculate; taU crossed by broader bands of dusky 

 (mottled on outer webs wdth light brownish cinnamon) and narrower 

 interrupted ones of light cinnamon, the latter usually mottled or 

 flecked in center with dusky; face, including "eyebrows" (super- 

 ciliary region) dull brownish white, narrowly barred with dusky 



o One specimen, from Costa Rica. 



6 Two specimens, from Costa Rica. 



c I have seen only Costa Rican examples of this species. 



