Concord, Mass.
1910.
April 20
(No 5)
[April 20, 1910]

Bitterns.

  During the time I had them under observation
they moved around in a nearly straight course
along the edge of the river but so very slowly
that the total distance covered was not more
than forty yards. At length the male rose and
flew down river two or three hundred yards.
Although he pumped a number of times in this
new station the female did not follow him.