Concord, Mass.
1912.
April 1 to
July 1

  Troglodytes aedon. On May 1 [May 1, 1912] I found a House Wren singing
at the Farm and saw it enter a box on a pole in the garden
at the rear of our house. After this it was seen or heard there
daily. On May 23 [May 23, 1912] I saw a pair together on a box on a pole
in the little vineyard in front of our house. At the time I
supposed the [male] to be the same as the one first noted on the 3rd
but on the 25th I found that there were two pairs, each
building in one of these boxes and keeping very strictly to a
limited area about it. During May the [male] in front of the
house was seldom heard but the one in the garden sang
freely at all hours. From June 24 to 30 both sang incessantly
from early morning to past sunset flooding the place with their
delightlful, joyous music. Often one of them would sing 14 or 15
times a minute, keeping it up for half an hour or more.
This second song period was decidedly more pronounced than
the first with both birds. I think its beginning must have been