CATALOGUE OF CANADIAN BIRDS. 261 



at Lake Okanagan all winter. {Brooks.) Our specimens from 

 Medicine Hat, Assa., from the 49th parallel between Trail and 

 Cascade, B.C., and those taken at Huntington in the Fraser River 

 valley are of this subspecies. {Macoun.) 



MUSEUM SPECIMENS. 



Six ; three taken at Medicine Hat, Assa., two at Cascade, B.C., 

 on the 49th parallel, and one at Huntington in the Fraser River 

 valley on the 49th parallel, all collected by Mr. Spreadborough. 



CXXIX. POLYBORUS Vieillot. 18 16. 



362. Audubon's Caracara. 



Polyborus cheriway (Jacq.) Cab. 1848. 



The occurrence of this species on the north shore of Lake 

 Superior, not far from Port Arthur, on July i8th, 1892, is reported 

 by Mr. George E. Atkinson, to the Natural History Society of 

 Ontario. (William Brewster in The Auk, Vol. X, 364.) 



CXXX. PANDION Savigny. 

 364. American Osprey. 



Pandion haliaetus carolinemis {Gu^i..) "R-iTiGVi . 1870. 



A single .specimen was obtained at Godhavn, Greenland, by 

 Mr. E. Whymper and sent to the Museum at Copenhagen. {Arc- 

 tic Manual.) 



This species is a common summer resident and generally dis- 

 tributed along rivers or the borders of lakes, in Newfoundland, 

 Nova Scotia, Prince Edward Island, New Brunswick, Quebec and 

 throug^iout Ontario. Westward it is found under the same con- 

 ditions throughout the prairie regions and the mountains to the 

 Pacific coast. Northward it is found in all the forest country and 

 beyond the Arctic Circle in the valley of the Mackenzie. In 

 Alaska, Nelson places its breeding range beyond the Arctic 

 Circle so that it breeds almost throughout its range. 



Breeding Notes. — About the beginning of May the osprey 

 commences to build. Its nest is built near the top of a tall tree 

 and is apparently occupied year after year by the same birds. 

 Each year a fresh layer of dry sticks is laid on top of the old nest 

 and it soon becomes a very bulky structure. The female lays 



