238 MANUAL OF PHILIPPINE BIRDS. 



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 the 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 body 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, when 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 with 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 white; length less than 200 mm. 



Species. 



a 1 . Slightly smaller erythrogenys (p. 238) 



a 2 . Slightly larger meridionalis (p. 239) 



196. MICROHIERAX ERYTHROGENYS (Vigors). 

 PHILIPPINE FALCONET. 



Hierax erythrogenys VIGORS, Proc. Zool. Soc. (1831), 96. 



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

 Hand-List (1899), 1, 273; MCGREGOR and WOBCESTEB, Hand-List 

 (1906), 44; McGfiEGOB, Philippine Jour. Sci. (1907), 2, sec. A, 323. 



Bohol (McGregor)-, Luzon (Meyer, Mollendorff, Everett, Steere Exp., White- 

 head, McGregor) ; Mindoro (Bourns & Worcester, Porter) ; Negros (Keay). 



Adult (sexes similar). Above, including wings and tail, black with a 

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



