30 



U S p. E. R tXP. AND SURVEYS — ZOOLOGY — GENERAL REPORT. 



white at their bases. Throat white, with longitudinal lines of brown, and with a patch of brown on each side running from the 

 base of the lower mandible ; breast with a wide band composed of large cordate and sagittate spots, and transverse bands of 

 reddish ferruginous tinged witli ashy ; other under parts white, with numerous sagittate spots of reddish on the flanks, abdomen, 

 and tibiffi. In some specimens the ferruginous color predominates on all the under parts, except the undfr tail coverts, and all 

 the feathers have large circular or ovate spots of white on both edges, under tail coverts white. Quills brownish black, widely 

 bordered with white on their inner webs ; tail dark brown, narrowly tipped with white, and with one wide band of white and 

 several narrower bands near the base. 



Young. — Upper parts dull umber brown, many feathers edged with fulvous and ashy white ; upper tail coverts spotted with 

 white. Under parts white, generally tinged with yellowish, and having longitudinal stripes and oblong and lanceolate spots c f 

 brownish black ; a stripe of dark brown on each side of the neck from the base of the under mandible. Tail brown, with eeveral 

 bands of a darker shade of the same color, and of white on the inner webs and narrowly tipped with white. 



Total length, female, 17 to 18 inches ; wing, 11 ; tail, 6^ to 7 inches. Male, total length, 16 to 16j inches; wing, 10 inches; 

 tail 6 to 6| inches. 



Hab. — Eastern North America. Spec, in Nat. Mus., Washington, and Mus. Acad., Philadelphia. 



In adult plumage this is a very handsome little hawk, and quite different in its color from 

 any other American species. It appears to be restricted to the States on the Atlantic slope, 

 more abundant in the north. 



List of specimens. 



BUTEO OXYPTERUS, Cassin. 



Buleo oxypterus, Cassin., Proc. Acad. Philad. VII, p. S82, (1855.) 



About the size of Buteo pennsylvanicus, Wilson. Bill rather long and compressed, edge of upper mandible slightly waved in 

 its outline, but scarcely lobed ; wing long, pointed, third quill longest ; tail moderate or rather short ; legs rather long, tarsus 

 feathered in front for about one-third of its length, naked behind, naked portion in front having about fourteen narrow trans- 

 verse scales ; claws large, strong, fully curved. 



Young bird. — Sex unknown. Entir» plumage above dark brown, nearly black on the back. Feathers of the head white at base, 

 and edged laterally with the same ; upper plumage with partially concealed spots and transverse bands of white. Quills nearly 

 black, with the inner webs dark cinereous barred with brown ; tail above ashy brown, white at base and having about ten trans- 

 verse bands of dark brown, outer feathers ashy white on their inner webs ; tail beneath silky, ashy white, with a bronzed 

 yellowish olive lustre. 



Behind and under the eye a stripe of rufous brown. Under parts pale yellowish white ; throat with lines and narrow stripes 

 of brownish black, and on other under parts every feather with a large lanceolate, cordate, or circular spot of dark brown, some 

 feathers on the flanks and sides having also some irregular bands of the same color. Nearly all the feathers on the under parts 

 with lines of dark brown on their shafts. Quills, with their inner webs on the under surface grayish or dark ashy, and near the 

 shafts with a bronzed olive lustre ; shafts white, (on the under surface.) Inferior coverts of the wing white, with sagittate spots 

 of dark brown. Tibial feathers yellowish white tinged with rufous, and having irregular transverse bars of dark brown. 



Dimmsions. — Total length (sex unknown) about 16 inches ; wing, 13^ inches ; tail, 7 inches. 



The adult of this bird is unknown, and the only specimen that we have ever seen is that now 

 described. It is about the size of Buteo pennsylvanicus, and bears some resemblance to the 

 young of that species, but has the wings and legs much longer and the bill also longer. The 

 colors, too, are different, and in the present bird the dark cinereous of the inner webs of the 



