258 MANUAL OF PHILIPPINE BIRDS. 
marked more or less with cinnamon; remainder of under parts dark 
cinnamon, more or less cross-bagged with white and dark brown, each 
feather with a blackish brown MP 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, 35; middle toe 
with claw, 33. 
Adult female, light phase—Not 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; McGrecor 
and WoRrcESTER, Hand-List (1906), 46. 
Cok-cok bd-buy, Calayan. 
Calayan (McGregor). 
Adult male, light phase; type-——Lower parts dark cinnamon finely 
mottled with brown and white, a few feathers on throat and breast with 
