756 



BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



PULSATRIX PERSPICILLATA PERSPICILLATA (Latham). 



SPECTACLED OWL. 



Adults (sexes alike). — Pileum^ liindneck, back, rump, and upper 

 tail-coverts plain very dark sooty brown; rest of upper parts dark 

 sooty grayish brown, the outer webs of exterior scapulars usually more 

 or less distinctly barred (broadly) -with paler, sometimes conspic- 

 uously barred with buff; larger wing-coverts (at least the greater 

 coverts) usually indistinctly mottled, marbled, or otherwise marked 

 with paler grayish brown; secondaries crossed by indistinct but very 

 regular and sharply defined, usually more or less mottled, bands of 

 lighter grayish brown; primaries similarly banded, but the bands 

 darker and becoming obsolete on distal portion of longer and outer- 

 most quills; tail crossed by narrow bands of lighter grayish brown, 

 these less distinct, sometimes obsolete or even altogether wanting, on 

 middle pair of rectrices; "eyebrow" (superciliary region) and anterior 

 portion of lores dull white, the bristly feathers of the latter with 

 shafts black distally; orbital and auricular regions and posterior 

 portion of lores plain dark sooty brown; malar region white or dull 

 white, sometimes streaked with dusky; chin and upper throat sooty 

 blackish ; across lower throat and extending thence laterally, on each 

 side, to behmd auricular region, white, more or less tinged or suffused 

 with pale brownish buffy posteriorly and laterally, where usually 

 more or less barred (broadly) with dark sooty brown or dusky; chest 

 uniform dark sooty brown; rest of under parts immaculate light 

 buff to cinnamon-buff; legs and feet immaculate buff; bill pale dull 

 yellowish; iris deep yellow to brownish orange-yellow; terminal 

 portion of toes dull yellowish gray. 



Young. — Remiges and rectrices (if developed) as in adults ; orbital 

 and auricular regions uniform sooty black or very dark sooty brown; 

 chin and upper throat sooty brown; rest of plumage (down) immac- 

 ulate buffy white, passing into pale buff on under parts of body. 



Adult maZe.— Length (skins), 400-435 (407); wmg, 305-335 

 (322.7); tail, 173.5-189 (182.2); cuhnen, from cere, 26.5-29 (27.3). « 



Adult female.— Length, (skins), 435-470 (459); wing, 318-350 

 (340.3); taU, 183-196 (190.5); culmen, from cere, 26.5-31.5 (29.1).^ 



a Three specimens. 



^ Seven specimens. 



Locality. 



MALES. 



One adult male from Venezuela 305 173.5 26.5 



One adult male from northern Colombia 335 184 26.5 



One adult male from eastern Panama (Canal Zone) 328 189 29 



One adult male from western Panama (ChlriquiX P. p. saiwroto) 329 182 30 



Nine adult males from Costa Rica (P. p. saturate) 335.2 197.7 28.8 



Two adult males from Nicaragua (P. p. soiuroto) 330 184 28,6 



Culmen, 

 from 

 cere. 



