ORIOLUS. 699 



median black streak ; thighs black, mottled with white ; under tail-coverts 

 bright lemon-yellow with dusky shaft-lines ; primaries, outer secondaries, 

 primary-coverts, and alula-feathers blackish, edged with ashy gray; 

 inner webs of primaries edged with white; secondary-coverts and inner 

 secondaries edged with dark olive-yellow ; rectrices blackish, the outermost 

 pair each with a large yellow spot (about 18 mm. in length) at tip of 

 inner web, the spot gradually decreasing in size on each succeeding 

 feather. A male from northern Negros measures : Wing, 122 ; tail, 86 ; 

 culm en from base, 24; tarsus, 21. 



Female. The female resembles the male in colors, but is slightly 

 smaller and has a smaller yellow spot on the outermost rectrix. A 

 female from northern Negros measures: Wing, 111; tail, 78; culmen 

 from base, 23.5; tarsus, 21. 



Steere's oriole differs from the Basilan oriole in having the inner 

 webs of the primaries white and the yellow spots on the rectrices much 

 larger. 



712. ORIOLUS BASILANICUS Grant. 

 BASILAN ORIOLE. 



Oriolus steerii (not of Sharpe, Cat. Birds Brit. Mus.) SHABPE, Trans. Linn. 



Soc. 2d. ser. Zool. November (1877), 1, 329 (description of adult male 



from Basilan); TWEEDDALE, Proc. Zool. Soc. (1879), 71 (Basilan); 



WORCESTER and BOURNS, Proc. U. S. Nat. Mus. (1898), 20, 558, no. 



302 (Basilan and Mindanao) ; MCGREGOR and WORCESTER, Hand-List 



(1906), 106 (Basilan and Mindanao). 



Oriolus basilanicus GRANT, Ibis (1896), 532; Ibis (1906), 471. 

 Oriolus steerei MCGREGOR, Phil. Jour. Sci. (1907), 2, sec. A, 290 (Basilan). 



Basilan (Steerc, Everett, Steere Exp., Bourns & Worcester, McGregor) ; Min- 

 danao (Platen, Bourns & Worcester). 



Adult. Similar to Oriolus steeri of Negros from which it differs in 

 having the lores, chin, throat, and chest lighter gray and the black 

 stripes of lower breast and abdomen narrower; inner webs of quills 

 edged with pale yellow instead of with white; the yellow spots on inner 

 webs of rectrices much smaller. Iris red; bill reddish brown; feet dark 

 plumbeous. A male measures : Length, 200 ; wing, 111 ; tail, 69 ; culmen 

 from base, 22.5; bill from nostril, 16; tarsus, 21. A female measures: 

 Length, 195; wing, 106; tail, 68; culmen from base, 22; bill from 

 nostril, 16 ; tarsus, 20. 



Young. Like the adult but chin, throat, and chest white, streaked 

 with gray or black. Iris gray with very little mixture of red; bill 

 dark brown. 



"Had we known the habits of the orioles of this type as well at the 

 beginning of our trip as we did at its close, we should doubtless have done 

 more than we did to extend their known distribution within the Philip- 

 pines. The peculiar note which they utter at frequent intervals when 



