Pseudoptynx mindanensis Grant, Bull. Brit. Orn. Club (1906), 16,
99; Ibis (1906), 496.
Mindanao (Goodfellow).
Adult male.--"Nearly allied to P. philippensis, from which it differs
in being somewhat larger and in the following points: General color
of upper parts much darker, the feathers being brownish black,
and rather narrowly margined with sandy rufous, instead of bright
tawny-buff; primary quills dark brown, with only faint traces of buff
markings; secondaries similar with faintly indicated grayish buff
transverse markings; tail-feathers brown, with whitish or whitish buff
transverse markings, rather faintly indicated on outer webs; under
parts more heavily streaked with blackish. 'Iris light brownish gold;
bill whitish toward the tip, bluish gray at base; feet pale gray;
nails white at base, gray at tip.' (Goodfellow.) Length, about 495;
culmen, 51; wing, 371; tail, 185; tarsus, 76." (Grant.)
Genus OTUS Pennant, 1769.
Small; ear-tufts well developed; primaries not greatly exceeding
secondaries; plumage buffy and mottled; tarsus more or less feathered;
toes naked in Philippine species.
Species.
a1. Tarsus feathered nearly to the toes.
b1. Plumage without many fine vermiculations.
c1. Darker above.
d1. Above very dark or deep rich brown.
e1. Head and neck not heavily streaked with blackish brown.
f1. Larger.
g1. Wing of male about 165 mm. ... everetti (p. 253)
g2. Wing of male about 185 mm. ... whiteheadi (p. 256)
f2. Smaller ... boholensis (p. 260); fuliginosus (p. 254)
e2. Head and neck heavily streaked with blackish brown; wing,
160 mm; tail, 75 ... romblonis (p. 259)
c2. Lighter above.
d1. Above light rufous-fawn. ... megalotis (p. 252)
d2. Above bright tawny-rufous. ... rufescens (p. 256)
b2. Plumage with many fine vermiculations.
c1. Smaller, wing about 150 mm. ... sibutuensis (p. 254)
c2. Larger, wing about 165 mm. or more.
d1. Head and neck heavily streaked with blackish
brown. ... cuyensis (p. 257)
d2. Head and neck finely mottled with blackish
brown. ... calayensis (p. 258)
a2. Tarsus feathered for proximal half only.
b1. Larger; rictal bristles and ear-tufts longer. ... longicornis
(p. 255)
b2. Smaller; rictal bristles and ear-tufts shorter. ... mindorensis
(p. 256)