200 CHECK-LIST OF NORTH AMERICAN BIRDS. 



GENUS NYCTALA BREHM. 

 Nyctala BREHM, Isis, 1828, 1271. Type, Strix tengmalmi GMEL. 



371. Nyctala tengmalmi richardsoni (BONAP.). 



Richardson's Owl. 



Nyctale richardsoni BONAP. Geog. & Comp. List, 1838, 7. 



Nyctale tengmalmi var. richardsoni RIDGW. Am. Nat. VI. 1872, 283. 



[B 55, C 327, R 400, C 482.] 



HAB. Arctic America, south occasionally in winter into the North- 

 ern United States. 



372. Nyctala acadica (GMEL.). 



Saw-whet Owl. 



Strix acadica GMEL. S. N. I. 1788, 296. 



Nyctale acadica BONAP. Geog. & Comp. List, 1838, 7. 



[B 56, 57, C 328, R 401, C 483-] 



HAB. North America at large, breeding from the Middle States 

 northward. 



GENUS MEGASCOPS KAUP. 

 Megascops KAUP, Isis, 1848, 765. Type, Strix asio LINN. 



373. Megascops asio (LINN.). 



Screech Owl. 



Strix asio LINN. Syst. Nat. ed. 10, I. 1758, 92. 

 Megascops asio STEJN. Auk, II. April, 1885, 184. 



[B 49'/<* C 3i8, R 402, C 465-] 



HAB. Temperate Eastern North America, south to Georgia, and 

 west to the Plains. Accidental in England. 



373 a. Megascops asio floridamis (RIDGW.). 



Florida Screech Owl. 



Scops asio \ix.floridanus RIDGW. Bull. Essex Inst. Dec. 1873, 2O - 

 Megascops asio floridanus STEJN. Auk, II. April, 1885, 184. 



