258 MANUAL OF PHILIPPINE BIRDS. 



marked more or less with cinnamon; remainder of under parts dark 

 cinnamon, more or less cross-barred with white and dark brown, each 

 feather with a blackish brown shaft-stripe; the coloration heaviest across 

 upper breast because of the greater width of the shaft-stripes and reduc- 

 tion of the white areas; middle of abdomen almost pure white; flank- 

 feathers with narrow shaft-lines and wide white bars; thighs rufous- 

 brown; wings mostly sandy cinnamon more or less mottled with brown; 

 outer webs of primaries regularly notched with five or six spots of white 

 or whitish cinnamon, bordered with dark brown; similar notches on 

 secondaries but less prominent owing to darker color of spots ; quills below 

 brownish with slightly lighter, irregular, and almost obsolete bars; alula 

 with similar light notches on outer webs, on the first feather the notches 

 are white; coverts generally uniform, but some feathers of median series 

 with large white patches on outer webs ; tail similar to the back with about 

 eight irregular and nearly obsolete cross-bars ; short plumulaceous feathers 

 below and behind the eye finely mottled with pale cinnamon, brown, and 

 whitish; behind ear, feathers of the incomplete ruff broadly tipped with 

 blackish brown forming a prominent dark band on side of head ; bristle- 

 like feathers of lores with bases whitish, tips blackish brown, the longest 

 about 20 mm. ; anterior bristles pale cinnamon ; tarsus feathered to base 

 of toes. Bill, cere, and feet dirty brown; nails horn-brown; iris yellow. 

 Length, 235; wing, 170; tail, 82; culmen, 23; tarsus, 3.5; middle toe 

 with claw, 33. 



Adult female, light phase. — Xot greatly different from the male, but 

 white notches on primaries and alula with a cinnamon wash. Length, 

 235; wing, 175; tail, 88; culmen (tip broken). 21; tarsus, 35; middle 

 toe with claw, 32. 



Red phase. — The pattern of coloration is the same as in the light phase ; 

 white and whitish markings nearly all replaced by rufous; chin and upper 

 throat and modified feathers below and behind eye almost clear rufous; 

 blackish brown markings on breast very wide; a few whitish bars on 

 abdomen and flanks. 



218. OTUS CALAYENSIS McGregor. 

 CALAYAN SCREECH OWL. 

 Otus calayensis McGregor, Bull. Philippine Mus. (1904), 4, 17; McGrf.oor 

 and Worcester, Hand-List (1906), 46. 



Cok-cok bd-huy, Calayan. 

 Calayan ( McGregor ) . 



Adult male, light phase; type. — Lower parts dai-k cinnamon tiiicly 

 mottled with brown and white, a few feathers on throat and breast witli 



