ACCIPITER EUFIVENTRIS. 



mandible towards base a light hom colour, towards and at tip liver-brown, 

 its edge below and in front of nostrils greenish yellow ; lower mandible 

 below and at base greenish yellow, — elsewhere liver-brown. Cere greenish 

 yellow. Eyes bright yellow. 



Female. — Upper parts, wings, under tail coverts, and tail, coloured as in 

 the male. Sides of neck, lower portion of throat, breast, belly, vent, and 

 thighs white ; each of the feathers of the sides of the neck marked with 

 a narrow longitudinal brown line, those of the breast, belly, vent, and 

 thighs with a similar line, and besides with several narrow waved yellowish 

 brown bars, irregularly edged with brownish red. The colours of the tarsi, 

 toes, claws, bill, cere, and eyes, as in the male. 



FoRJi, &c. — Figure moderately slender and like that of the Sparrow Hawk 

 {Accipiter Nisiis) of Europe. Upper mandible strongly hooked, nostrils oblong 

 and suboval, bristles at angles of mouth many and rigid. Wings when folded 

 reach nearly to the middle of the tail, the fourth quill feathers the longest, 

 the fifth nearly of equal length, the third slightly shorter and rather longer 

 than the sixth, the second and seventh nearly equal, and about an inch 

 shorter than the third, the first about half the length of the fourth. Tail 

 nearly even, or only very slightly rounded. Tarsi long and slender, anteriorly 

 scutellated, posteriorly reticulated. Toes long and rather slender, the inner 

 one much the shortest, the outer and middle ones connected at base by a well 

 developed membranous web. Claws long, slender, considerably curved, and 

 sharp pointed. 



DIMENSIONS. 



Male. Female. 



In. Ls. In. Ls. 



Length from the point of the 



bill to the base of the 



tail 7 8 6 



of tlie bill to the angle of 



the mouth 8 10 



of the wing8 when folded 8 8 8 



of tail 6 2 7 i 



Male. Female. 



In. Ls. In. Ls. 



Length of the tarsus 19 2 



of the outer toe 10 11 



of the middle toe .... 1 4 I 4,^ 



of the inner toe 7 7J 



of the hinder toe ... 6 65 



The individual represented in the plate and lettered C, is of the same 

 species but of a ditferent age from the other two. The character of its 

 colouring would indicate it as the adult bird, and if such be the case, the 

 others must be regarded as not exhibiting the mature plumage. It is of the 



