1921 BIRDS OF MONTANA 39 



as otlier records IVoiii this saiue pul)li('ation show that Trook was collecting in 

 this vicinity in May, 1860. Several pairs seen in the Big Horn Mountains by 

 J. C. Merrill, and thought to be breeding (AVade, 1881, p. 44). Birch Creek, 

 Teton County, .May 80 to June 3, 1912 (Saunders, 1914a, p. 128). Iceberg Lake, 

 Glacier National Park, a pair observed June 27, 1918 (Warren, 1!)14. p. 585). 

 Tpper Two Medicine Lake, Glacier National Park, August 5, 1914 (Saunders, 

 1915c, p. 225). A pair taken on Flathead Lake without date, were mounted by 

 Stanford (Sloanaker, MS), Seven seen on the West Gallatiu River September 

 •80. 1917 (Thomas, MS). 



48. Oidemia deglandi Bonaparte 



WiiiTE-wixGED Scoter 

 A Tall migrant in the western part of the state, occurring in some numbers 

 in August, indicating that it may possibly breed in the state. The only i-ecords 

 are as follows : Headwaters of the Missouri ({)robably mainly Broadwater 

 County), August 11, 1900, abundant (Jones and Dawson, 1900, p. 29). A fall 

 migrant on Flathead Lake according to Stanford (Saunders, 1915b, p. 114). 

 Upper Two ^ledicine Lake, Glacier National Park, one seen August 5, 1914. A 

 migrant at Billings (Thomas, AIS). 



44. Oidemia perspicillata (Linnaeus) 



Surf Scoter 



Occurs on Flathead Lake in fall. Three speciminis mounted by Stanford 

 (Saunders, 1915b, p. 114), Several occurred on Big Lake, Stillwater County, 

 in the fall of 1917 (Thomas, MS). 



45. Erismatura jamaicensis (Gmeliu; 



Ruddy Duck 



A migrant, {)ro])ably throughout the state, though records are lacking in 

 some localities. Breeds along the northern border. Breeding records : Milk 

 River (Cones, 1874b, p. 654) ; Flathead Indian Reservation, ^Missoula County 

 (Silloway, 1908b, p. 80). Breeds in the lake basin near Billings, eggs having 

 been secured June 4, 1918. Eggs were found in nests of the Pintail and Shovel- 

 ler (Thomas, MS). 



Migration records: Fort Keogh, April 21, 1889 (Thorne, 1895, p. 212); 

 Yellowstone River (Cameron, 1907, p. 250) ; Fergus County (Silloway, 1903a, 

 p. 14) ; Anaconda, October, 1910 (Saunders, 1912a, p. 28) : Bitterroot Valley, 

 rare fall migrant. Found at Corvallis in October, 1910 and 1911. One, Octobei- 

 10, 1911 (Bailey, MS). 



16. Chen hyperboreus hyperboreus (Pallas) 



Snow Goose 



A common migrant on prairies and in valleys practically throughout the 

 state, but not reported from some localities. Records, with migration dates, are 

 as follows: Custer and Dawson counties, April 7, 1890; September 12. 1904, 

 and November 12, 1903 (Cameron, 1907, p. 250). I'pper Missouri in October 



