[rec.birds] Purple-Martin Houses

barney@ut-emx.UUCP (Barney C. McCartney) (06/28/89)

How large should the openings be for a purple-martin house?
I was given a home-made house, I set it up in February when
the Martins arrive in central Texas, they arrived and landed
on the house, but they left after several days.  I think the
openings might be too small.