368 MANUAL OF I'HILIPPINE BIRDS. 



length; wing, 116; tail, 110; culnien, 23; tarsus, 15; middle toe with 

 claw, 21. Five females, length, 212; wing, 115; tail, 106; culmen, 23; 

 tarsus, 15; middle toe with claw, 20. Bill and nails black: iris black to 

 leaden; food insects." (Bourns and Worcester MS.) 



Genus HIEROCOCCYX S. Miiller, 1839-44. 



Superficially this genus resembles Cuculus but differs by its com- 

 paratively shorter primaries and longer secondaries. In plumage and 

 flight these cuckoos mimic the smaller Accipitrine hawks, and this prob- 

 ably protects them from the attacks of the larger hawks and owls. 



Species. 



a}. Breast with distinct blackish brown bars, tip of tail white; wing, 200 mm. 



or more _ sparverioides (p. .",HH) 



a^ Breast without bars; tip of tail rufous; wing, 180 mm. or less... fugax (p. .'^69) 



331. HIEROCOCCYX SPARVERIOIDES (Vigors). 



ASIATIC HAWK CUCKOO. 



Cuculus sparverioides Vigors, Proc. Zool. Soc. (1831), 173. 



Eierococcyx sparverioides Shelley, Cat. Birds Brit. Mus. (1891), 19, 



232. 

 Eierococcyx sparveroides Shakpe, Hand-List (1900), 2, 157; McGregor 



and Worcester, Hand-List (1906), 61. 



Calamianes {Bourns d Worcester) ; Luzon (McGregor) ; Negros (Whitehead) ; 

 Palawan (Platen). Malay and Indian Peninsulas, Burmese provinces, eastern 

 Siberia, Japan, China, Borneo. 



"Adult. — Above brown with a bronzy gloss, changing gradually into 

 gray on the back of the neck and crown; the outer tail-coverts barred 

 with white, and the longest ones often with darker ends and narrow 

 pale edges; tail with about five distinct dark bars and narrow pale tips 

 to the feathers, seldom much shaded w-ith rufous; sides of the head and 

 chin gray, with a broad white band from the front of the eye to the 

 white on the throat, separating the gray of the head from the chin; 

 upper throat white, changing on the lower throat and front of the chest 

 into rufous, and the whole mottled with pale gray; remainder of the 

 under parts white, with the breast down to the thigbs broadly barred with 

 dusky brown, and partially washed with rufous; under wing-coverts 

 white, shaded with rufous; quills dusky broA\Ti with numerous white or 

 buff partial bars on their inner webs. 'Bill black, with the base of the 

 lower mandible pale green; iris, eyelids, legs, and claws briglit gamboge- 

 yellow.' (Davison.) Length, 394; culmen, 28; wing, 206; tail, 190; 

 tarsus, 25. 



"Immature. — Differs from the adult in the gray of the upper parts 

 being confined to the crow^l, the back of the neck being mottled with 

 rufous, the feathers of tlie back and wings more or less edged or barrel 



