LIST OF THE BIRDS OF EASTERN NORTH AMERICA. 359 



^- ;^-,;- Genus SCOTIAPTEX. Swains. 



304 (370) SCOTIAPTEX CINEREA. ((^mkl.) Great Gray Owl. 



Arctic species, wliicli occurs in winter as far south as New England and 

 Illinois ; numerous records for Massachusetts, New York, Ohio, etc. 

 Genus NYCTALA. Brehm. 



305 (371) NYCTALA TENGMALMl RICHARDSONI. (BoNAi.) Richardson's Owl. 



Arctic species ; casual in winter in northern United States ; New Eng- 

 land, Illinois, etc. ; breeds north of United States. 



306 (372) NYCTALA ACADICA. (Gmel.) Saw=whet Owl. Acadian Owl. 



North America ; breeds from middle United States northward. 



307 (373) MEQASCOPS ASIO. (Linn.) Screech Owl. 



Eastern North America ; Canada to Georgia ; breeds nearly throughout 

 its range. 



308 (373tt) Megascops asio Jloridanus. (Riugw.) Florida Screech Owl. 



A rather small southern race of the Screech Owl, somewhat darker and 

 the markings heavier; occurs in Gulf States from South Carolina 

 to Louisiana. 



Genus BUBO. Dumeril. 



309 (37.)) BUBO VIRQINIANUS. (Gmel ) Great Horned Owl. 



Eastern North America ; north to Labrador ; breeds throughout its range. 



310 (375a) Biibo virgmianus ardicus. Swaixs. Arctic Horned Owl. 



Pale birds have occasionally been taken in northeastern North America 

 which may be referable to this race. 



311 (375'') Bubo virginianus saturalus. Ridgav. Dusky Horned Owl. 



A dark race ; ranging from Labrador and Hudson Bay westward to 

 Alaska ; south to Louisiana and Arizona ; some Louisiana speci- 

 mens are very dark. 



Genus NVCTEA. Steph. 



312 (376) NYCTEA NYCTEA. (Linn) Snowy Owl. 



Northern North America ; in winter, south to Middle States ; breeds 

 north of United States. 



Genus SYRNIA. Dumeril. 



313 (377a) SURNIA ULULA CAPAROCH. (Mull.) American Hawk Owl. 



Arctic North America; south in winter to borders of Ignited States ; 

 New England and Illinois ; breeds from New England northward. 



Genus 5PE0TYT0. Gloger. 



314 (378) SPEOTYTO CUNICULARIA HYPOQ^A. (Bonap.) Burrowing Owl. 



Western species ; one record from Massachusetts. 



315 (378a) Speotyto cunicularia floridana. Ridgw. Florida Burrowing Owl. 



Resident in southern Florida ; a rather dark form, having the feet and legs 

 (tarsus) almost without feathers ; breeds in (i hole in the ground. 



