BIRDS FROM SI AM AND THE MALAY PENINSULA 51 



yellow, claws black. He gives the weight of four females as 3, Sji, 3%, 

 and 4 pounds. 



Of the nine specimens from Trang, one male and four females are 

 fuscous-black; two females are white below with a few light-drab 

 markings, the head above yellowish buff streaked with a few sagittate 

 fuscous-black markings; a male and female are rather heavily streaked 

 below with fuscous-black, the pileum and nape fuscous-black, the 

 feathers edged with buffy brown, the thighs barred with rusty brown. 

 Dr. Abbott has marked one of the wliite-breasted females as immature, 

 and it is my opinion that this phase is the young, probably in the first 

 winter plumage, that the heavily streaked specimens are older birds in 

 the second year, and that the fuscous black specimens are the fully 

 adult birds. They breed in the second plumage, as a female shot 

 from the nest by Count Gyldenstolpe at Koh Lak, January 20,^- was 

 in this plumage. 



The only specimen examined by me from Java is a glossy fuscous- 

 black male, with a wing measurement of 372 mm. The wing in the 

 black Trang male measures 367 mm. 



The crest in this form is comparatively short, and the feathering of 

 the tarsi does not extend down on the toes as it does on the other two 

 species of the genus occurring in Siam. 



N. c. limnaetus ranges from northern India to eastern Bengal and 

 Assam, south through Siam to the Malay Peninsula, Sumatra, Java, 

 Borneo, and the Philippine Islands. It has been recorded from pretty 

 much all over Siam, but evidently is more abundant in Peninsular 

 Siam than farther north. Robinson ^^ has recorded it from Koh 

 Pennan, off Bandon. 



HIERAAETUS PENNATUS (Gmclin) 



Falco pennatus Gmelin, Systema naturae, vol. 1, pt. 1, p. 272, 1788 (no locality; 

 France has been suggested). 



Dr. W. L. Abbott collected one adult male (black phase) and two 

 immature males in Tenasserim (Maliwun, March 23, 1900, and March 

 9, 1904; and Telok Krang, February 16, 1904). 



He describes the colors of the soft parts of the adult male: Iris 

 dark brown; bill and cere black; toes pale dirty yellowish, claws black. 



The adult male from Telok Krang is in the black phase. It is bone 

 brown all over and is molting into an even darker brown (near light 

 seal); the pileum and nape have the bases of the feathers wdiite and 

 wood brown subterminally, these colors showing through and accentu- 

 ating the seal-brov/n tips; the longer, upper tail coverts are light buffy 

 brown; the bases of the middle tail feathers are whitish, almost hidden 

 by the coverts. Superficially this specimen is almost identical with the 

 black phase of Nisaetus cirrhatus limnaetus, but it has weaker feet; 



" Kungl. Svenska Vet.-Akad. Handl., vol. 56, no. 2, p. 127, 1916. 

 "s Journ. Federated Malay States Mus., vol. 5, p. 144, 1915. 



