Purple Martin Bird Box Project

Purple Martin Bird Box Project

Pictured are Purple Martins on two of the newest boxes #40 and 41 and on three of the oldest boxes H2-H3. Two years ago BHAS arranged for installation of 34 new boxes in addition to the 12 older white boxes already there and built by Peter Hahn. After two years of monitoring we found that the birds did not use the newer boxes for nesting. We believed that the box design did not meet the birds’ needs.  This spring we removed the 34 boxes and installed six new boxes built by Hank Henry to meet the design from Washington Fish and Wildlife.

This year, as of May 24 there are 23 purple martins at the Boston Harbor colony.  They appear interested in both kinds of boxes though haven’t started nesting.  Last year a similar number of adults produced seven fledglings.