714. ORIOLUS ASSIMILIS Tweeddale.
CEBU ORIOLE.

Cebu (Everett, Bourns & Worcester, McGregor).

Adult (sexes similar).—Above olive-yellow; lores, jaw, cheeks, chin, throat, and chest cinereous; lower breast, abdomen, flanks, and thighs white heavily streaked with black; feathers of crissum dark olive-green, edged with olive-yellow; rectrices black slightly washed with olive basally, narrowly tipped with dark gray on both webs and with light yellow on inner webs; inner webs of wing-quills edged with pale gray; axillars and wing-lining cinereous; bend of wing gray, washed with yellow. Iris bright red; bill dull red-brown; feet lead-blue; nails black. In the immature bird the iris is white and the bill dull brown. An adult male measures: Length, 234; wing, 122; tail, 94; culmen from base, 24; bill from nostril, 16.5; tarsus, 22. Adult female, wing, 116; tail, 86; culmen from base, 24; bill from nostril, 16.5; tarsus, 22.

“While this species is plainly of the Oriolus steeri type it differs in being larger, in the much darker and greener upper parts and under tail-coverts, in the darker throat and breast, in the wider black markings of abdomen, and in the reduced yellow tips of rectrices.

“O. assimilis is exceedingly common in the small amount of forest left in Cebu. It is a well-marked species and could not possibly be mistaken for O. steeri, being a much darker bird. The lack of the bright rump and under tail-coverts is an especially striking point of difference. Sixteen males average: Length, 225; wing, 120; tail, 89; culmen, 26; tarsus, 22.3; middle toe with claw, 23.8. Ten females, length, 217; wing, 118; tail, 87; culmen, 25.6; tarsus, 22.3; middle toe with claw, 23.3. Iris usually bright red, but in one case gray; legs and feet dark drab, nails black; bill light to dark reddish brown. Food worms, grubs, snails, and fruit.” (Bourns and Worcester MS.)

715. ORIOLUS XANTHONOTUS Horsfield.
BLACK-HEADED ORIOLE.