APPENDIX 187 



to the Arctic Ocean and Alaska. The western shores of 

 Hudson Bay seem to be the eastern limit of the normal 

 breeding ground in North America. A few birds have 

 been seen in Labrador, north to Ungava Bay, on the 

 west coast of Greenland, north to Upernavik, and also 

 in Newfoundland and the Maritime Provinces. But there 

 are only a few breeding records east of the line from the 

 western side of Hudson Bay to the western shore of Lake 

 Michigan ; examples are : St. George Island, James Bay ; 

 St. Clair Flats, Ontario, and the north shore of Lake 

 Erie. Breeding abundantly along the northern border 

 of the United States from Lake Superior nearly to the 

 Pacific Ocean, the species decreases in numbers south- 

 ward until it is rare or casual as a breeder in southern 

 Wisconsin, northern Illinois (Will, Calumet Marsh, 

 Grass Lake) ; southern Minnesota (Faribault, Waverly, 

 Heron Lake) ; northern Iowa (Hancock County) ; south- 

 ern South Dakota (Vermilion, Scotland, Running Wa- 

 ter), and northern Nebraska (Kennedy, Hay Lake) ; ac- 

 cidental near Kansas City, Mo.; abundant in Montana 

 and rare in Wyoming (Lake Desmet), Colorado (Lari- 

 mer County), and probably Arizona (Mormon Lake) ; 

 common in British Columbia, and rare and local through 

 Washington (Mabton) and Oregon (Rock Creek Sink) 

 to southern California (Alamitos.) The northern limit 

 of the breeding range extends from the Arctic coast 

 northwest of Hudson Bay west to Alaska and the Si- 

 berian coast. 



The pin-tail breeds in the northern portions of the Old 

 World and migrates south in winter to northern Africa 

 and southern Asia. A few have been taken in the Ber- 

 mudas in the fall and winter. 



