84 PACIFIC COAST AVIFAUNA No. 14 



County, the identification of the parent being in question, contained eggs on 

 June 28, 1909, and well-grown young, July 13 (Saunders, 1909b, p. 197). 



169. Stellula calliope (Gould) 



Calliope Hummingbird 



A common summer resident of the lower mountains in the western half of 

 the state. Rare in the eastern half. Abundant in the northwest, west of the di- 

 vide. Nests mainly in the Transition zone of the foothills and lower mountain 

 slopes. In eastern Montana this bird was seen by Bowman at Knowlton in Sep- 

 tember, 1889, and it was found nesting in Custer County by F. Z. Gray (Came- 

 ron, 1907, p. 390). All other records are in the western half of the state. The 

 eastern limits of its common range are indicated by the following publislu'd 

 notes: Teton County (Saunders, 1914a, p. 13-t) ; Gold Run, Cascade County 

 (Williams, 1883, p. 59); and Cokedale, Park County (Saunders, 1911a, p. 38). 

 Nearl.y all observers west of these points mention the species. 



Migration takes place in May. Dates are: Gold Run, May 24, 1882 (Wil- 

 liams) ; Cokedale, May 29, 1909; and Birch Creek, Teton County, June 2, 1912. 

 I can find no dates to indicate fall migration, the latest date, aside from the Sep- 

 tember record in eastern Montana, being Bear Creek, Gallatin Count,v, August 

 12, 1890 (Richmond and Knowlton, 1894, p. 304). 



The only nesting records are from Custer County, as given above, and from 

 Flathead Lake. A nest was found at Yellow Bay, in the latter locality, in June 

 and July, 1914 (Saunders, 1915b, p. 113), and another, probablj' of the same 

 individual, in the same locality but somewhat higher from the ground, in lOlTi. 

 A nest was found in this same localit.y in 191G on a limb of a cedar. It con- 

 tained eggs on June 18, 1916, and large young, July 10 (Sloanaker, MS). 



170. Tyrannus tyrannus (Linnaeus) 



Kingbird 



A common sununer resident throughout the state. Found in tiie Transition 

 and Upper Sonoran zones of the i)rairies and mountain valleys, nesting in bushes 

 bordering streams and lakes or standing alone on the prairie, or in cottonwood 

 groves. All observers record it and it is equall.v connnon at eastern and western 

 extremes of the state. 



In migration it arrives during the latter half of ilay and leaves in lati' 

 August or September. At Terry, seven years give the average date of arrival as 

 May 16, the earliest date, ]May 13, 1905 ; at Columbia Falls four years average is 

 May 21, with the earliest May 15, 1896 (Cooke, 1908, p. 167). Other dates are: 

 Bridger Creek, Gallatin County, May 19, 1909; Gregson, Deer Lodge County, 

 May 30, 1910; Choteau, May 23, 1912; Bitterroot Valley, May 22, 1910, May 16, 

 1911, May 19, 1912, and May IS, 1913 (Bailey, MS) : Dutton, Jlay 28, 1915, and 

 May 21, 1916 (DuBois, MS). Fall dates: Columbia Falls, September 11, 1895 

 (Cooke, 1908, p. 167) ; Bozeman, August 31, 1908; Jefferson River, August 25, 

 1909: and Choteau, August 22, 1911. 



Nesting takes place mainly in June and July. In eastern Montana young 



