PLATE VII. 



Fig. 1. — A colony. Three nesting boxes on one tree, all occupied by birds, on the 

 reservation of the Massachusetts Commission on Fisheries and Game at Martha's 

 Vineyard. (Original photograph.) 



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Fig. 2. — A row of nesting boxes on a pasture fence on the farm of .Mr. Williaiii I'. Wliar- 

 ton, Groton, Massachusetts. This plan is successful. A large proportion of the.se 

 boxes were occupied. (Original photograph.) 



