238 MANl'AL OF PHILirriXE BIRD8. 



number, one subterminal ; secondaries paler brown, externally rufous; 

 upper tail-coverts tawny-rufous, edged with white and with dark brown 

 centers; tail-feathers dark brown, narrowly fringed with white at the 

 ends, and crossed with blackish bands, the subterminal one very broad, 

 but not nearly so wide as tbe preceding interspace; a crest of white 

 feathers, the long ones freckled with brown; head, nape, and hind neck, 

 lores, sides of face, ear-coverts, cheeks, sides of neck, and entire under 

 surface of bod}' pure white, slightly washed with rufous on the head and 

 hind neck; the breast, abdomen, and under tail-coverts washed with 

 creamy buff; the sides of the body and flanks with slight indications of 

 spots of pale tawny buff ; under wing-coverts and axillars like the breast ; 

 quills below ashy gray, with blackish bars on the primaries. Length, 

 394; culmen, 29; wing, 274; tail, 178; tarsus, 35. 



"The typical [=type] specimen, though manifestly immature, differs 

 thoroughly from the young of B. sumatrensis, and I feel sure that the 

 adult bird, wben discovered, will be markedly distinct." (Sharpe.) 



"Rare and shy. Iris, legs, and feet yellow ; nails black ; bill black, 

 slaty at base; bare flesh of head greenish yellow. One specimen had been 

 eating crabs when shot. 



"A male measures 457 in length; wing, 312; tail, 199; culmen, 27; 

 tarsus, 76 ; middle toe with claw, 40. A female, 457 in length ; wing, 305 ; 

 tail, 208; culmen, 26; tarsus, 64; middle toe witb claw, 43." {Bourns 

 and Worcester MS.) 



The adult of this rare species appears to be undescribed. 



Genus MICROHIERAX Sharpe, 1874. 



Bill strong; edge of mandible with a double notch forming a sharp 

 tooth; cere small; no crest; first primary nearly equal to second and third 

 which are the longest ; secondaries short ; tarsus and feet strong ; plumage 

 black and wliite ; length less than 2(»(l mm. 



Species. 



(i\ Slightly smaller erythrogenys (p. 2:^8) 



a'. Slightly larger meridionalis (p. 239) 



li»(;. MICROHIERAX ERYTHROGENYS (Vigors). 

 PHILIPPINE FALCONET. 



Hierax erylhroyenys Vigors, Proc. Zool. Soc. ( 1831 ), 9(5. 



Microhierax erythrogenys Sharpe, Cat. Birds Brit. Mus. (1874), 1, 369; 

 Hand-List (1899), 1, 273; McGregor and Worcester, Hand-List 

 (1900), 44; McGregor, Philippine Jour. Sci. ( 1907), 2, sec. A, 323. 



Bohol (Mc(!ref)or) ; Luzon (Meyer, M Ollendorff, Everett, Steere Exp.. White- 

 head, McGregor} ; Mindoro (Bourns d- Worcester. I'orter) ; Negros (Keay). 



Adult {se.res similar). — Above, including wings and tail, black with a 

 dark green gloss; below white; sides, thighs, and under tail-coverts black. 



