MIGRANTS AND WINTER RESIDENTS. 163 



Bay-breasted Warbler: Dendroica castanea. 



Back thickly streaked with black and gray; white wing- 

 bars and tail-patches; crown chestnut in male, olive-green 

 and black in female; forehead and sides of head black; 

 throat, upper breast and sides chestnut-red; lower breast 

 and belly buffy- white. Length 5^ inches. May 10 to 20; 

 September i to October 20. Sometimes abundant, usually 

 uncommon. 



Black-poll Warbler: Dendroica striata. 



Upper parts ashy streaked with black; two white wing- 

 bars and white tail-patches; crown black; under parts 

 white streaked with black. Female, upper parts olive-green, 

 distinctly streaked with black; under parts tinged with yel- 

 low. Length $ l / 2 inches. May I to June 5; September 6 

 to October 20. Abundant. 



Blackburnian Warbler: Dendroica blackburnice. 



Upper parts chiefly black, wings and tail largely marked 

 with white; throat and breast, cheeks, and center of black 

 crown bright orange-red. In the young the orange is dull 

 yellow. Length 5]/ 2 inches. May 6 to 20; August 20 to 

 October. Common. 



Black-throated Green Warbler: Dendroica virens. 



Upper parts clear olive-green; wings and tail dusky; 

 wings with two white bars, outer tail-feathers mostly white; 

 forehead and sides of head yellow; throat and upper breast 

 glossy black; rest of under parts yellowish-white, the sides 

 streaked with black. Length 5 inches. April 25 to May 28; 

 August 28 to October 20. Very common. 



