IQ4 CHECK-LIST OF NORTH AMERICAN BIRDS. 



[B , C 34 i, R 412 ,498.] 

 HAB. Interior of Arctic America, from Hudson's Bay to Alaska. 



354 . Falco rusticohis obsoletus (GMEL.). 



Black Gyrfalcon. 



Falco obsoletus GMEL. S. N. I. i. 1788, 268. 



Falco rusticolus obsoletus STEJN. Auk, II. 1885, 187. 



[B,C,R 412 ^,0499.] 

 HAB. Labrador, south in winter to Maine and New York. 



355. Falco mexicanus SCHLEG. 



Prairie Falcon. 



Falco mexicanus SCHLEG. Abh. Geb. Zool. 1841, 15. 

 [B 10, C 342, R 413, C 502.] 



HAB. United States, from the eastern border of the Plains to the 

 Pacific, south into Mexico ; casual eastward to Illinois. 



SUBGENUS RHYNCHODON NITZSCH. 



Rhynchodon NITZSCH, Pterylog. 1840, 78. Type, by elimination, Falco 

 peregrinus LATH. 



356. Falco peregrinus anatum (BONAP.). 



Duck Hawk. 



Falco anatum BONAP. Geog. & Comp. List, 1838, 4. 

 Falco peregrinus /3. anatum BLASIUS, List B. Eur. 1862, 3. 



[B 5, 6, C 343, R 4M, C 503.] 

 HAB. North America at large. 



356 a. Falco peregrinus pealei RIDGW. 



Peale's Falcon. 



Falco communis var. pealei RIDGW. Bull. Essex Inst. V. Dec. 1873, 2O1 - 

 Falco peregrinus pealei RIDGW. Pr. U. S. Nat. Mus. III. Aug. 24, 

 1880, 192. 



[B , C 343 a, R 414 a, C 504.] 



HAB. Pacific coast region of North America, from Oregon to the 

 Aleutian and Commander Islands. 



