Cambridge,Mass.
1910
Feb. 6 [February 6, 1910]
(No 5)
timely and legitimate endeavor to fulfill the duties
of procreation. Only once before have I seen Squirrels
of any species thus occupied. That was many years
ago when I watched a pair of Red Squirrels copulating
in a Norway Spruce near the head of Buckingham
Street, Cambridge. For nearly half an hour, if I
remember rightly, this sexual contact was not once
broken nor the sexual movements of the male suspended
for more than a few seconds at a time. I think,
moreover, that I found and left them thus engaged
and that they kept up a constant low whining or 
chattering cry. But I am writing now from 
memory. Probably the observation is recorded
somewhere in my journal. The experience happened
when we were taking our meals at
Mrs. Scudders, certainly in summer or early autumn &
probably some 12 or 15 years ago.
Gray
Squirrels
copulating