PASSERES— SYLVICOLLDAE— DEXDROICA COROXATA. 



193 



DEXDROICA COROXATA (L.). 



Yellow-rump Warbler. 



Motacilla coronata, Linn., Syst. Nat., i, 17CC, 333. 



ISylvicola coronata, Woodh., Sitgreave's Exp. Zuui & Col. Riv., 1854, 71. 



Dendroica eornnata, Bd., Birds X. A., 185S, 272. — HENRY, Proc. Acad. Xat. Sci. Phila., 

 1S59, 106 (New Mexico).— Coop. & Suckl., P. R. R, Rep., xii, pt. ii, 1800, 

 180,-Havd., Trans. Am. Phil. Soc, xii, 1862, 100.— Bd., Rev. Am. Birds, i, 

 1805, 187.— Coopee, Birds Cal., 1870, 89.— Cooes, Key X. A. Birds, 1872, 

 99, f. 41.— Allen, Bui. Mus. Comp. Zool., 1872, 175 (Eastern Kansas).— 

 Snow, Birds Kau., 1872, 7.— Aiken, Proc. Bost. Soc. Xat. Hist., 1872, 196. — 

 Bd., Brew., & Ridg., X. A. Birds, i, 1874, 227, pi. xii, f. 9.— Hensuaw, Rep. 

 Orn. Specs., 1S73, Wheeler's Exped., 1874, 58.— Coues, Birds Xorthwest, 

 1S74, 57. 



In the Middle Province, this species occurs only as a migrant, and it 

 would appear to be rather uncommon. Early in May, a few were noticed 

 near Denver, Colo., mingled with the flocks of the Audubon's "Warbler, 

 whose habits at this season at least appear to be the counterpart of 

 its own. They move easily and quickly through the small trees and 

 bushes, pursuing all the while an onward course, now and then descending 

 to the ground, or poising themselves for an instant on fluttering wings to 

 pick off an insect from the under surface of a leaf or crevice in the bark. 

 Many of the males were in song, and often lingered for an instant to give 

 voice to a low, sweet warble. Several times, I heard males of the two species 

 singing in the same tree, and was thus enabled to note the very great simi- 

 larity of the two songs. I never met with the species in this region during 

 the fall. 



No. 



Sex. 



Locality. 



Date. 



Collector. 



Wing. 



Tail. 



Bill. 



Tarsus. 



23 

 I2 3 



9 ad. 

 S ad. 

 9 ad. 





May 7, 1S73 

 May 9) 1S73 

 May 17, 1S73 



II. W. Henshaw 



do 



2. So 

 2.90 

 2.90 



2-33 

 2-35 

 2-33 



0.40 



°-39 

 0.40 



0. 72 

 °-73 

 °-73 



do 



do 



do . 







13 z 



