Concord, Mass.
1910.
May 26
(No 3)
[May 26, 1910]

Three nests of Baltimore Orioles built in from 4 to 6 days

  Although during the past week I have never seen more
than two male Orioles about the Farm at any one time I
found, in the elms near the house, two nests well begun
on May 20 and a third which the [female] was literally beginning
with the very first string, on the 21st. All three birds
have been at work more or less constantly, ever since
up to to-day when they seemed to have all finished
their labors. Yesterday they were lining the nests with 
dry grass. I think the two found on the 20th
must have been begun the day after that. Thus it
would seem that the time required for completing the
nest varies somewhat with different birds, ranging at
least from four to six days.