194 CHECK-LIST OF NORTH AMERICAN BIRDS. 



[B— , C341, R4I2/^, C498.] 

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



354^. Falco rusticolus obsoletus (Gmel.). 



Bl-Ack Gyrfaleon, 



Falco obsoletus Gmel. S. N. 1. i. 1788, 268. 



Falco rusticolus obsoletus Stv.]'^. Auk, II. 1885, 187. 



[B — , C — , R 4.1 2 r, C 499.] 



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



35d. Falco xnezicaniis 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. 



Rhyttchodon Nitzsch, Pterylog. 1S40, 78. Type, by elimination, Falco 

 peregrinus Lath. 



356. Falco peregrimis anatum (Bonap.). 



Duck Hawk. 



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

 Falco peregrinus ^. anatum Blasius, List B. Eur. 1862, 3. 



[B 5, 6, C 343, R 414, C 503.] 



Hab. North America at large. 



366 a. Falco peregrinus pealei Ridgw. 



Peale'a Falcon. 



Falco com fnunis v2lt. pealei RiDG'W. Bull. Essex Inst. V. Dec. 1873, 201. 

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

 1880, 192. 



[B — , C 343 a, R 414^, C 504.] 



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

 Aleutian and Commander Islands. 



