201 



Eemarks. — This well-marked race is founded upon a 

 specimen from Mexico in ^Ir. Lawrence's cabinet, and ouc 

 from Guatemala in the INIuscum of the Boston Society. 

 The two are alike in colors, l)ut, as might be expected, 

 the southern one is smaller. This form resembles very 

 closely the S. atriccqjiUa (Natt.)— Temra. PI. Col. 145— 

 but may be immediately distinguished by the strongly 

 haired toes, they being perfectly naked in S. atricapilla. 



Falco communis, var. Pealei Ridgway. 



? ? ? Falco niger Gmel. S. N., 1789, 270. 



Falco polya^grus CASS. B. Cal. and Tex., pi. xvi (dark figure !). 



Ch. Entirely brownish-black, uniform above, faintly streaked with 

 ■white below. No transverse bars on inner webs of tail feathers or 

 primaries. Wings, 1-4-96-15-GG; tail, 8-50; culmen, -OS-l-lO; tarsus, 

 2-00; midclle toe, 2-15-2-20. Hah. Northwest coast of North America, 

 from Oregon to Sitka. (Types, No. 12,622, ? ad., Oregon. Type of 

 Cassin's figure above quoted ! No. 45,814, $ ad. Sitka, Alaska.) 



Falco columbarius, var. Sucldeyi Ridgway. 



Ch. a miniature of F. communis, var. Pealei. Above, plain brown- 

 ish-black, the tail tipped with white, but otherwise unmarked. Be- 

 neath pale ochraceous, broadly striped with sooty black. Wing, 7*35- 

 8-56; tail, 5-25-5 -75; culmen, •5G--55 ; tarsus, 1-36-1 -02; middle toe, 

 1-25-1-35. Ilab. Northwest coast of N. Am., from Oregon to Sitka. 

 (Types, No. 4,477. Male, Shoalwater Bay, W. T., and 5,832, female 

 Fort Steilacoom. Based on series of six specimens.) 



Remarks. — This form represents the northwest coast 

 region of heavy rains and dense forests, along with the 

 black Peregrine {F. communis, var. Pealei) the Bubo 

 Virginianus, var. Pacificus, Scops asio, var. Kennicot- 

 tii, Bonasa uiuhelJus, var. Sabinei, Canace ohscura, var*- 

 fuliginosa, etc. The light-colored form of the interior is 

 probably the Falco Pichardsonii Ridgway (P. A. N. S., 

 1870, p. 145), which I am now disposed to refer to the 

 same stock as F. cesalon and F. Columharius. The latter 

 two are certainly but geographical races of one species. 



