BAY-BREASTED WARBLER 



Young male. Similar to adult male but little 

 or no chestnut on sides; none in fall. 



A common migrant. Hallinan took one in 

 1915 at New Culebra, " In a cocoa plantation." 



10. Dendroica castanea (Wilson) 

 Bay-breasted Warbler 



Length 122 mm. (4.80 in.); tail 52 mm. 

 (2.05. in.) 



Male. Spring. Crown chestnut, the fore- 

 head and sides of head including ear coverts 

 black; a buffy patch on sides of neck; remaining 

 upper parts buffy gray, the back streaked with 

 black; two white wing bars and white patches 

 at ends of outer tail feathers; throat, chest and 

 sides chestnut; remaining under parts buffy 

 white. Fall. Above olive green somewhat 

 streaked with black; under parts whitish; sides 

 with some chestnut. 



Female. Similar to male but less brightly 

 colored. 



Young. Upper parts bright olive green indis- 

 tinctly streaked with black; wings and tail as in 

 adults; under parts white tinged with buff, 

 deeper on sides. 



A migrant. Recorded by Jewel from Gatun 

 in November and by Hallinan from New 

 Culebra in November. One seen at Barro 

 Colorado Island in April. 

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