The Migration of North American Birds 



Compiled by Prof. W. W. Cooke, Chiefly from Data in the Biological Survey 



With a Drawing by Louis Agassiz Fuertes 

 (See Frontispiece) 



BROWN CREEPER* 



The Brown Creeper winters throughout so large a part of its breeding- 

 range that the migratory movements are difficult to trace. In the Rocky 

 Mountains, and especially on the Pacific Coast, the problem becomes still 

 more complicated, for here some individuals remain locally through the 

 win ter almost to the northern limit of the breeding- range. 



The Brown Creeper has been separated into several forms. The eastern 

 bird (americana), extending west to the Plains, is strictly migratory — there is 

 probably no individual that spends the winter at the nesting-site. 



The Mexican Creeper (albescens) occurs in southern Arizona, southwestern 

 New Mexico, and northern Mexico. 



The Rocky Mountain Creeper (montana), as its name implies, ranges in 

 the Rocky Mountains from central Alaska to New Mexico. 



The California Creeper {occidentalis) is found on the Pacific coast from 

 Sitka, Alaska, to the Santa Cruz Mountains, California. 



*This species was figured in the April number of Bird-Lore 

 SPRING MIGRATION 



PLACE 



Montreal, Canada 



Neilsonville, Quebec 



Chatham, N. B 



Chicago, 111 



Waterloo, Ind. (near) 



Sandusky, Ohio 



Petersburg, Mich 



Bay City, Mich 



Houghton, Mich 



Gait, Ontario 



Ottawa, Ontario 



Keokuk, Iowa 



Fairfield, Iowa 



Grinnell, Iowa 



National, Iowa 



Madison, Wis 



North Freedom, Wis 



Meridian, Wis 



Lanesboro, Minn 



Minneapolis, Minn 



Elk River, Minn 



White Earth, Minn 



Grand Forks, N. D. (near) 

 Southern Manitoba 



Number 

 of years' 

 record 



17 



ID 



6 



6 

 8 

 8 



9 

 6 



4 

 6 



II 



7 

 6 



6 

 4 



Average date of 

 spring arrival 



March 31 



May IS 

 March 24 

 April 6 

 April 2 

 March 27 

 April 6 



March 12 

 April 13 

 April II 

 April 5 

 March 27 

 April 6 

 March 31 

 April 2 



April 7 

 April 7 

 April 7 



April 17 

 April 16 



Earliest date of 

 spring arrival 



February 6, 1857 

 April 23, 1887 

 May 10, 1895 

 February 10, 1907 

 January 19, 1890 

 March 18, 1905 

 March 12, 1886 

 March 27, 1894 

 April 18, 1908 

 March 2, 1901 

 February 18, 1885 

 February 14, 1899 

 March 29, 1893 

 March 18, 1890 

 March 27, 1908 

 March 3, 1909 

 March 18, 1903 

 March 28, 1897 

 January 2, 1892 

 January 5, 1889 

 March 28, 1884 

 April 20, 1 88 1 

 April II, 1903 

 April 3, 1910 



(199) 



