138 



295. Dendroica mstiva (Gmkl.). Yellow Warbler. 



Breeding Range — Throughout eastern and northern N. A. 

 Winter Distribution. — Through eastern Mexico to northern N. A. 



Summer resirlent, but irregular in distribution, being an abundant 

 breeder in some localities, and only a transient in others. The 

 presence of water-courses seems to determine its distribution to a 

 considerable extent. 



Arrives May 1 and departs September 25. 



296. Dendroica ccerulescens (G^iEi..). Black-throated 



Blue Warbler. 



Breeding Range — Northern New England northward, and southward 



along the mountains. 

 Winter Distribution — Florida, Bahamas, Greater Antilles and southern 

 Mexico. 



Common transient occurring May 5-20 and September 10-Octo- 

 ber 10. 



It probably breeds all along the higher mountains of Pennsyl- 

 vania, having been found abundantly in the breeding season at 

 Harvey's Lake {Stone), North Mt. {Dioight-Auk, 1892), Lycoming 

 county {Koch), and less frequently at Mt. Pocono {Shryock) and 

 Cresson {Dwight). 



297. Dendroica coronata (Linn.). Myrtle Warbler. 



Yellow-rumped Warbler. 



Breeding Range — Northern border of U. S. northward. 

 Winter Distribution — Southern Middle States to Panama. 



Abundant transient,* passing the vicinity of Philadelphia, April 

 25-May 20, and September 25-November 1. Throughout the Pine 

 Barren region and as far north at least as Haddonfield, N. J., it is 

 a regular winter resident and occurs irregularly in winter in south- 

 eastern Pennsylvania. 



* Dr. Warren states that he has observed this species in Cameron county, 

 Pa., June 25, 1888, McKean county, July 14, 1889, and Clinton county, August 

 10, 1889, each time a single bird. This would indicate that the species may 

 breed sparingly in the Pennsylvania mountains and plateau region. 



