616. Riparia riparia 
BANK SWALLOW. 5 inches 
Male and Female alike. Above é4rvowz. Below white, with a 
brown band across the breast ; tail slightly forked. 
The smallest of the swallows. Breeds in colonies. Arrives in 
Massachusetts about May 1. 
Note. A twittering. 
Nest. Ina hole ina sand bank. 
Breeds. Locally throughout New England. 
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