ascertained to occur in Illinois. 379 



Genus Syrnmm, Savigny. 

 Subgenus Syrnium. 



m 



♦165. S. 7iebitlosum (F or St.). Barred Owl; " Hoot Owl." Eesident. 



Subgenus Scotiaptex, Swains. 

 166. *S'. cinereum (Gin el.). Great Gray Owl. Winter visitant to 

 extreme northern portions. 



Genus Scojys, Savigny. 

 *167. S. asio (L.). "Screech Owl;" Little Red Owl; Mottled Owl. 

 Eesident. ♦ 



Genus Bubo, Dum^ril. 



Subgenus Bubo. 



*168. £. Virginianus (Gme\.). Great Horned Owl; "Cat Owl." a. 

 var. Virginianus G m e 1 . Resident, h. var. jxrcticus Swains. Win- 

 ter visitant to northern portion (Peliin, Cambridge Musp:um). 



Subgenus Nyctea, Stephens. 



169. B. scandiaca (Jjinn.), var. arctica B artr. Snowy Owl. Win- 

 ter visitant. Entire state. 



Genus Surnia, Dumeril. 



170. S. ulula (Li n n .), var. /iMc?so?«'a Gmel. Hawk Owl. Winter 

 visitant to northern portion (Kennicott). 



Family FALCONIDiE. The Hawks. , 

 Subfamily Falconing. The Falcons. 

 (Falcones.) 

 Genu-s Fcdco, Auctorum. 



171. F. communis Grael., var. anatum Bo nap. American Pere- 

 grine Falcon; Duck Hawk. Resident? 



Subgenus Ilierofalco, Cuvier. 



172. F. lanarius Gmel., var. polyagrus Cass. Autumnal and winter 

 visitant. (Rock Island, Sargent ; Mt. Carmel and Bridgeport, Ridgway.) 



Subgenus JEsalon, Kaup. 



* 173. F. cohimharius Linn. American Merlin ; Pigeon Havpk. 

 Resident? 



Subgenus Tinnuncuhis, Vieillot. 



* 174. F. sparverius (Linn.). American Kestril; Sparrow Hawk. 

 Resident. 



January, 1874. 26 Ann. Ltc. Nat. Hist., N. Y., Vol. x. 



