132 PACIFIC COAST AVIFAUNA No. 14 



]!)r2. Spring migration dates, in places wliere the birds do not In-eed, are 'aH 

 follows: Fort Keogh, IMay (i and 10, 188!:) (Thorne, 1895, p. 217) ; Mi'.es City, .'.lay 

 4 and 9, 1902 (Hedges, coll. Univ. Montana) ; Terry, May 10, 1897 (Cameron, 

 1908a, p. 42); Great Falls, May 15, 1892, and (^oliuubia Falls. .May 15, 1895 

 (Cooke, 1913b, p. 237). 



Fall migration dates are as follows: Dawson County. August 27, 1904 

 (Cameron, 1908a, p. 42) ; Miles City, September 20, 1900 (Hedges, coll. L. B. 

 Bishop); Gold Creek, August 27, 1910; and Sun River, September 19, 1911. 

 None of these dates is from the breeding grounds, but possibly one from the 

 Rocky Mountains, August 23, 1874 (Coues, 18741), i). 59()). is, and indicates 

 about the date of departure. 



The only breeding records pertain to three nests found on Pipestone Creek, 

 Jefferson County, in 1910. These are as follows: One with four eggs June 18, 

 1910, from which the young emerged June 20, and one with three eggs June 

 19, and one with five eggs June 22. A young bird out of the nest was also 

 found in this vicinity June 26 (Saunders, 1910d, p. 198). 



249. Melospiza g-eorgiana (Latham) 



SW'AMi' Sparrow 

 A rare migrant or winter visitor in the eastern part of the state. Four birds 

 taken at Miles City by C. F. Hedges: February 17, 1900, one (coll. Fniv. Mon- 

 tana), October 2, 1919, two, and October 24, 1919, one. Two more western rec- 

 ords are as follow'S : Flathead Lake, one young bird, doubtfully identified, 

 taken August 11, 1904 (Silloway, 1901a, p. 64) ; Elk Park, Silver liow County, 

 one seen Septemlier 8, 1910 (Saunders, 1912a. j). 29). 



250. Passerella iliaca iliaca (Merrem) 



Eastern Fox Sparrow 

 A rare migrant, chiefly in the eastern ])art of the state, ranging west to 

 the foothills of the mountains. There are three records. Fort Custer, one taken 

 October 8. 1885 (Bendire, 1889b, p. 109) : Gre^^t Falls, a rare migrant in spring, 

 two or three taken, one on ^fay 9, 1887 (Williams, 1888a, p. 18) ; Hannan Gulch. 

 Sun River, Teton County, one seen October 18, 1911 (Saunders, 1914a. p. 139). 



251. Passerella iliaca schistacea Baird 



Slate-colored Fox Sparrow 



A common summer resident in the western half of the state in the moun- 

 tains. Breeds in dense willow thickets along streams in the upper Transition 

 and lower Canadian zones. Whei-e the i)ropei' conditions |)i'c\ail 1liis species is 

 often abundant locally, but it is i-are in other localities, and has not bt'en noticed 

 by numy observers. It has not been recorded east of the mountainous section of 

 the state. Specific points of occurrence are as follows: Flathead Lake, laken 

 at Echo Lake, July 3, 1900 (Silloway, 1901a, p. 64) ; Gallatin County, abundant, 

 breeding both in the mountains and in the higher parts of the Gallatin V^alley. 



