IcS Allen and Brewster of/ Colorado Bird^. 



[Jniy 



ern birds breed. Thev are not uncommon in Georgia and Florida during 

 the winter and early spring, but they apparently depart before the end of 

 April. To the northward of the Carolinas in the Atlantic States the 

 Orange-crown, of whatever race, is very rarely seen, while the migrants 

 that pass up the Mississippi Valley are said to belong to the typical i^cel- 

 ata) form. Possibly obscura will be found to summer among the little- 

 known mountains of Georgia and the Carolinas. In such a case it will 

 probably turn out to be a verj' local form. 



25. Dendrceca sestiva. Yellow Warbler, — First Seen 

 May 6 ; they soon became frequent in the town and in the 

 willows and cottonwoods of the creek bottoms, and continued 

 more or less common. 



26. Dendrcsca to-wnsendi? — Three black-throated green 

 Warblers were seen on Bear Creek. May 19, which could not 

 be certainly distinguished from D. virens^ but from the known 

 ranp-e of the two species are more likely to have been D. toivn- 

 sendi. Having no gun at the time prevented their proper iden- 

 tification. 



27. Dendroeca coronata. Yellow-rumped Warbler. 

 — The first specimen was shot April 25. It afterwards became 

 not uncommon, associating with D. a7idubd7ii and remaining 

 for two or three weeks. 



28. Dendroeca auduboni. Audubon's Warbler. — First 

 seen April 28 — a single male. Afterwards they were seen 

 almost daily, and became fairly abundant about May 8, frequent- 

 ing the shade trees and gardens of the town, as well as the creek 

 bottoms and bluffs. Continued conmion till about May 16, and 

 w'ere last seen May 20. 



29. Dendroeca striata. Black-poll Warbler.-— A sin- 

 o-le one was seen May 8, and one was shot May 9, both at 

 Austin's Blufls, and the only ones seen. Mr. Aiken regards 

 them as of regular occurrence but rare. 



30. G-eothlypis trichas. Maryland Yellow-throat. — 

 A single specimen was seen and taken April 13 ; no others were 

 seen till May 10, after which they were more or less frequent in 

 suitable localities. 



In a recent paper on Arizona birds I called attention to certain pecul- 

 iarities in western examples of this species, peculiarities already noted 

 by previous writers, but by them regarded as too inconstant to warrant 

 the separation of a new race. Since that time, however, I have examined 

 a number of additional specimens, and among these the characteristics 

 which distinguish western from eastern birds are so well maintained that 

 I feel justified in instituting the following variety : — 



