660. Dendroica castanea 
BAY-BREASTED WARBLER. 5 1-2 inches 
Male. Above brown, streaked with black; crown chestnut; fore- 
head and sides of head black; wing bars and tail spots white. 
Below, throat, breast and sides chestnut; belly pale yellow. Female. 
Similar, but colors duller. 
A rare migrant in Massachusetts. Arrives about the middle of 
May. 
Song. A fine, hurried z-e-e. 
Nest. In conifers. 
Breeds. In northern New England. 
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