104 WILD ANIMALS OF GLACIER NATIONAL PARK. 



examined in the files of the Bureau of Biohjgical Survey, and lists 

 of birds observed during short visits to the park have been kindly 

 turned over to me by Mr. Harold C. Bryant, of California, and IMr. 

 Edward K. Warren, of Colorado. To these gentlemen, as to Mr. 

 E. S. Bryant, taxidermist, of Columbia Falls; Mr. Walter Scott 

 Gibb, assistant chief ranger of the park; Mr. William C. Gird, park 

 guide; Mr. Harry P. Stanford, taxidermist, of Kalispell; and Mr. 

 Donald H. Stevenson, formerly a park guide, I would extend my 

 sincere thanks for much valuable information. Records of a hundred 

 and eighty-seven species have been olitained altogether, but many 

 more doubtless remain to be discovered by future workers in the park. 

 The illustrations are from photographs by Messrs. Vernon Bailey, 

 A. C. Bent. E. J. Cameron, J. E. Haynes. H. W. Nash, H. & E. 

 Pittman, Eobert B. Rockwell, J. EoAvley, Hon. George Shiras, 3d, 

 and Mr. E. R. Warren; and drawings by Maj. Allan Brooks and 

 by Messrs. Louis Agassiz Fuertes, Bruce Horsfall, John L. Eidgway, 

 Robert Ridgway, and Ernest Thompson Seton; and in the main 

 have appeared previously in the publications of the Bureau of Bio- 

 logical Survey, U. S. Department of xVgriculture, and the National 

 Association of Audubon Societies; in Bird-Lore; and the Handbook 

 of Birds of the Western States, published by the Houghton Mifflin 

 Company. 



The classification and nomenclature used in the report are those of 

 the 1910 Check List of the American Ornithologists'' Union, the Six- 

 teenth Supplement, and the proposed changes in The Auk, up to 

 April, 1918. 



II. WHERE THE SUMMER BIRDS MAY BE EOXJND. 



The park with its heavy forest cover and its snow banks and glaciers 

 would seem an unlikely place for birds to spend the summer, as few 

 species care for either deep forests or snow-clad mountains; but 

 while general conditions limit the abundance of birds found within 

 the boundaries of the park, certain local conditions increase their 

 numbers, so that by knowing where to look one may find a richly 

 varied bird population. While birds breed within fairly definite 

 boundaries governed by temperature during the breeding season, 

 many of them wander widely afterwards, and in the late summer 

 may be encountered almost anywhere in the park. 



BIEDS OF THE LOWEU LEVELS. 



Around the warm outer margins of the park — in the Lake Mc- 

 Donald and the North Fork of the Flathead regions on the west, 

 and the St. Mary, Sherburne Lake, and Belly River regions on the 

 east — islands and tongues of Transition Zone prairie together witli 

 swampy meadows, sloughs, and large lakes affording more or less 



