16 



V. S. p. E. R. EXP. AND SueVEYS^ZOOLOGY — GENEEAL EEPOET. 



under surface of the body in the present bird never assume that degree of regularity which is 

 commonly met with in the European bird, and it is in other respects quite distinct^ as pointed 

 oiit by the distinguished naturalists who have described it, Wilson and Temminck. 



List of specimens. 



6906 

 6846 

 5839 

 8508 

 8509 

 4365 

 4518 

 8507 



Locality. 



Nelson river, H. B... 

 PortTownsend.W.T. 

 FortSteilacoom,W. T. 

 do do 



do do 



do do 



ShoalwaterBay, W. T. 

 Dalles, O. T 



When collected. 



Jan., 1857.. 

 Aug., 1856 . 



Mar. 25, 1856. 



Jan. 20, 1855 . 

 Mar. 8, 1854.. 



Whence obtained. 



D. Gunn ... 

 Dr. Suckley. 

 , do.... 



Governor Stevens . 



Dr. Suckley 



Dr. Potts 



Dr. Cooper 



Governor Stevens . 



a 



o 



528 

 101 

 306 



Collected by- 



120 

 141 



Dr. Suckley. 



Dr. Suckley. 



Measurements. 



22.00 

 22.50 





40.00 

 38.00 



ACCIPITER, Brisson. 



Aceipiter, Beisson, Orn. I, 310, (1760.) 

 Genera] form more slender and smaller than Astur, but otherwise similar. Wings short, tail long, tarsi long and slender, 

 frequently with the scales in front nearly obsolete. Contains about twenty Species of all countries, several of which intimately 

 resemble each other. Colors in North American species very similar to each etlier, especially iii adult specimens, though they 

 differ materially in size . 



ACCIPITEE COOPEEII, Bonaparte,. 



Coopei's Hawk. 



Fttlco Conperii, Bonap. Am. Orn. II, 1. (1828.) 

 Falco Stanleii, Ann., Orn. Biog. I, 186. (1831.) 

 FiGHREs.— Bonap. Am. Orn. I, fig. 1 ; Aud. E. of Am. pi. 36, 141, fig. 3, Oct. ed. 1, pi. 24. 



MiiU. — Head above brownish black, mixed with white on the occiput, other upper parts dark ashy brown, with the shafts of 

 the feathers brownish black ; an obscure rufous collar on the neck behind. Throat and under tail coverts white, the former with 

 lines of dark brown, other under parts transversely barred with light rufous and white. Quills ashy brown, with darker bands, 

 and white irregular markings on their inner webs ; tail dark cinereous, lipped with white, and with four wide bands of brownish 

 black. 



Young. — Head and neck behind yellowish white, tinged with rufous, and with longitudinal stripes and oblong spots of brown; 

 other upper parts light amber brown, with large partially concealed spots and bars of white; upper tail coverts tipped with white; 

 under parts white, with narrow longitudinal stripes of light brown, tail as in adult ; bill blueish horn-color ; tarsi' yellow. 



Dimensions.— Female, total length 18 to 20 inches, wing 10 to 11, tail 8^ inches ; male, 16 to 18 inches, wing 9^ to 10, tail 

 8 inches. 



Ho6.— All of temperate North America. Chile (Gay). Spec, in Nat. Mus., Washington and Mus. Acad. Philadelphia. 



This species, rather common on the coast of the Atlantic, is apparently not so abundant in 

 the western colfntries of the United States. Three specimens only are in the present collection. 



