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Bird Day Book 



THE PURPLE MARTIN 



THE purple martin and its Pacific coast relative, progne subis 

 hesperia, are too well known to need a detailed description. The 

 adult male is a lustrious blue-black, the wings and tail being slightly 



PURPLE MARTIN. LENGTH, ABOUT 8 INCHES 



duller. The adult female and the young of both sexes are grayish 

 brown, glossed with steel-blue on upper parts, while beneath they 

 are dark gray, shading into whitish on the belly. The size of the 



