32 PACIFIC COAST AVIFAUNA No. 14 



(Allen. 1874, p. 68). Ilcli'iia, four shot l).v Win. .Alatli and A. L. Palmer in 

 August, I'JOl (Silloway, from an unpublished manuscript in the possession of 

 the University of Montana). Statements are made that this species remain? 

 until the ponds and lakes fi'e(>ze in early winter, but there are no definite dates 

 on record to show this. 



22. Mergfus americanus ("assin 



MERCiANh^ER 



A summei' resident in the western part of the state, mainly west of the con- 

 tinental divide, where it is reported to breed. Oouurs in migration tiiroughout 

 tlie state. 



Summer records: Flathead Lake, probably breeding (Silloway, 1901a, p 

 .38). Bitterroot Valley, common breeder (Bailey, ]\IS). Breeds in Glacier Park 

 (P. M. Bailey, 1918, p. 5.3). 



Records in migration: Powder River and Deer Creek, Custer County, .Alay 

 3-19, and September 19, 1860 (Cones, 1874a, p. 584). Miles City, October, 1889 

 (Thorne, 1895, p. 212). Terry, November 12, 1904 (Cameron, 1907, pp. 237-238). 

 Lewistown, April 27, 1903 (Silloway, 1903a, p. 12). Choteau, April 16-17, 1912 

 (Saunders, 1914a, p. 127). Corvallis, Ravalli County, March 1, 1911; March 7, 

 1912 and Februar.y 15, 1913 (Bailey, IMS). This species has also been recorded 

 without dates from the Little Blackfoot River (Cooper, 1869, p. 84) and from 

 Gallatin County (Saunders, 1911a, p. 32). In Glacier National Park, Mergansers 

 are reported to remain all winter in open water (F. M. Bailey, 1918, p. 53). 



The only data which indicate the time when they nest are from the Bitter- 

 root Valley, as follows: "They breed regularly along the river. I have foiind 

 them breeding as early as March, (March 23, 1912) and have found young no 

 more than a week old in June (June 10, 1910) " (Bailey, MS). 



23. Mergus serrator Linnaeus 

 Red-breasted Merganser 



A migrant, fairly common in most localities, and recorded throughout the 

 state. The bird has been frequently seen in August and September in the 

 mountainous parts of the state, and may breed in such localities, thoiigh there is 

 nothing to indicate this at present. The only record west of the continental 

 divide is at Lake MacDonald, where one was shot by a forest ranger (Sloanaker, 

 MS). 



Spring migration dates are as follows: Fort Keogh, April 27, 1889 (Thorne, 

 1895, p. 212). Lombard, Gallatin County, April 22, 1909 (Saunders, 1911a, p 

 32). Dawson County, April 7, 1890 (Cameron, 1907a, p. 248). Buxton, Silver 

 Bow County, May 6, 1910, and Anaconda, May 1, 1911 (Saunders, 1912a, p. 23). 

 Choteau, May 23, 1912 (Saunders, 1914a, p. 1*27). 



24. Lophodytes cucullatus (Linnaeus) 



Hooded Merganser 

 Widely distributed over the state, apparently breeding in suitable localities, 

 everywhere, but not common anywhere. Summer records of the sjiecies are 



