l86 THE CHICAGO ACADEMY OF SCIENCES. 



Telmatodytes palustris CouES, Key N. Amer. Birds, 1872, 87, part ; 



RiDGWAT, Amer. Nat., VII, 1873, 200. 

 Telmatodytes palustris iliacus Ridgway, Proc. Biol. Soc, Washitiigtou, 



XVI, Sept. 30, 1903, 110. 

 Popular synonyms : Geass Wben. Praibie Marsh Ween. Stink- 



BIBD. 



The Long-billed Marsh Wren is an abundant summer resident 

 in all of the marshes of our area, arriving near the last of April 

 and departing about the last of October. 



I have had the privilege of studying an excellent series of 

 specimens of this Wren, taken within our borders, and of com- 

 paring them with as good series of both the eastern and the 

 western forms. The characteristics of the specimens from the 

 Chicago Area were very constant and the differences- between 

 them and both the eastern and western forms was so marked that 

 I believe Mr. Ridgway!s diagnosis of the species (see Bull. U. S. 

 Nat. Mus. no. 50, pt. Ill, 489-499) is more satisfactory than any 

 other arrangements of the various forms. I have, therefore, 

 used his subspecific name iliacus. 



Mr. Ridgway recognizes seven distinct forms of this species, 

 of which the eastern form (Telmatodytes palustris palustris) 

 ranges westward to western New York and Pennsylvania and 

 south, in winter, to North and South Carolina. The western 

 form (Telmatodytes palustris plesius) frequents the Rocky Moun- 

 tain plateau district of the United States and British Columbia 

 Brest to the middle of Washington and Oregon ; south during iti 

 migration into Lower California and central Texas. Three other 

 forms frequent only the coast districts of the southern United 

 States, and one only the Pacific coast districts. 



Mr. Ridgway gives the following range for the form which 

 frequents our region : "Great Plains and prairie districts of Cen- 

 tral United States and south-central British Provinces ; north 

 to Alberta and, probably, to Manitoba ; east to Illinois and western 

 Indiana; southward in winter over the greater part of Mexico 

 (except northwestern portion) as far as Vera Cruz, Zacatecas, 

 and eastern Jalisco, and along Gulf coast of United States to 

 western Florida, casually to South Carolina, North Carolina and 

 Virginia. 



FAMILY CERTHIID^: CREEPERS. 

 Genus CERTHIA Linnaeus, 1758. 

 Certhia familiaris americana (Bonaparte). Brown Creeper. 



Certhia familiaris Wilson, Amer. Orn., I, 1808, 122, pi. 7, fig. 1. 



