30 CLASS AVES. 



In some species of Falcons the tarsi are shielded, 

 and not reticulated, and the wings are short. Tin- 

 nunculus, Vieillot. 



American Sparrow Hawk. {F. Sparverius, Lin. 

 ? F. Domminicensis, Lath. pi. Enl. t. 444. ^ . 465 

 9 Wils., O. t. 32. f.2. t. 16. f. 1.) 



Rufous beneath, pale, spotted with black; seven 

 round spots about the head. F. cesalon, var. Lath., 

 is the young. 



Pigeon Hawk. (F. columbarius, Wilson, 

 1. 17. f. 3.) 



Dusky; beneath whitish, with blackish stripes; tail 

 with four narrow white bands. Of Hudson's Bay. 



In others the edge of the beak is deeply bidenticu- 

 lated. Tarsi scutulated, and the wings short, second 

 quill longest. These form the genus Hierax of 

 Vigors. 



Bengal Falcon. (F. coerulescens, Lin. Edw. t. 108. 

 pi. col. t. 97.) Gal. Ois. t. 18. 



Back bluish-black ; temples inclosed in a white line ; 

 cera, eyebrow, feet, and lower part of body, yellow. 

 The smallest of the order ; length six inches. Bengal. 

 The Falco fringillarius of some ornithologists. 



In others the bill is two-toothed ; the tarsi scaly ; 

 head crested, and the wings long. 



Colvy Falcon y Lath. Hist. t. 10. F.Lathami, n. 



Head crested, black ; scapulars, rump, and beneath, 

 white ; breast and scapulars bay banded, latter black 

 tipt. India. 



