148 Wyoming Experiment Station. 



Williston at Lake Como on May 10, 1878. Bond has taken a 

 few specimens at Cheyenne, and the specimen taken by Drexel 

 at Fort Bridger, 1858, and originally placed under the name 

 Water-Thrush, proved to belong to this variety. (So de- 

 termined by U. S. National Museum. ) 



€80. Geothlypis tolmiei (Towns.). 

 Macgillivray's Warbler. 

 Summer resident ; quite common. Arrives on the Lara- 

 mie plains late in May, and breeds up to 8,000 feet. Drexel 

 reports them as very common at Fort Bridger, 1858; Dr. 

 Cooper captured two specimens at Fort Laramie, Aug. 31, 

 1857 ; Grinnell reports them from the Yellowstone park, 

 1875 ; Cones reports one specimen from Box Elder creek ; Ai- 

 ken found them in the vicinity of Sherman ; Jesurun reports 

 them common at Douglas ; Bond has found them rather com- 

 mon at Cheyenne. There are four skins in the University col- 

 lection that have been taken in Albany and Carbon counties. 



681 a. Geothlypis trichas occidentalis Brewst. 

 Western Yellow-throat. 

 Summer resident ; rather common. All of the early rec- 

 ords of this variety have been included under the Maryland 

 Yellow-throat, and have been transferred purely upon the 

 geographical range of the two birds. Drexel reports this spe- 

 cies from Fort Bridger, 1858; Dr. Cooper took a specimen at 

 Fort Laramie, 1855 ; the National Museum No. 69863 was tak- 

 en at Laramie by Dr. Newberry ; Coues reports a specimen 

 taken at La Bonte creek ; Aiken found them near Sherman ; 

 Jesurun finds them rather common at Douglas ; Bond has tak- 

 en numerous specimens at Cheyenne ; Gary found them abund- 

 ant near Newcastle ; West has sent in one skin taken at Buf- 

 falo, to the University. 



683 a. Icteria virens longicauda (Lawr.). 

 Long-tailed Chat. 

 Summer resident ; common below 7,000 feet ; above that 

 elevation rare. Although there are but few reports, there are 



