Fes., 1912. Mammats oF ILLINOIS AND WIscoNsIN— Cory. 457 
variable accompaniment of hibernation. When I threw open the 
blind last October, exposing them to the full glare of the afternoon 
sunlight, they maintained the same position and showed little sign of 
awakening, but half an hour later had disappeared, though the sun 
was still several hours high. This year the blinds were left open for 
the first part of the summer, and the bats were obliged to look up new 
sleeping quarters. In July I closed the blinds, hoping to entice the 
bats back to their former apartments; and, sure enough, about the first 
of the month I was delighted to see a solitary individual hanging by 
his toes on one corner of the window, fast asleep. Wishing to have him 
pose as model for an illustration, I unceremoniously routed him out 
and deposited him on my desk, where he spent a most unhappy morn- 
ing, losing all patience with me before the portrait was half com- 
pleted,— which was hardly to be wondered at, considering the cir- 
cumstances. As often as I tried to get him to change his position, 
he would break forth into shrill stuttering protests and snap viciously 
at everything within reach; but he soon quieted down on being left 
alone, and slept complacently close to my hand while I sketched him. 
Several times he escaped and flew deliberately downstairs, which I 
think few birds would have the intelligence and coolness to do. All 
those that I have seen in similar circumstances fluttered helplessly 
against the glass or ceiling and absolutely refused to fly downward 
under any provocation; but my bat flew up or down with equal will- 
ingness, and from room to room, earnestly searching for a passage 
to the open air. Whenever he felt tired he would hang himself up 
in a fold of a curtain to rest, apparently being fast asleep as soon as 
he was fairly settled. Glass he soon learned to avoid as slippery and 
treacherous; but the mosquito screens furnished better foothold, and 
the way he would scuttle about over these was something marvelous. 
Finally I carried him outdoors and gave him his freedom, and, in 
spite of the sun, he seemed to find no difficulty in seeing, but started 
directly for the barn window, which was partly open, and entered it 
as the swallows did. No one seeing him at the time could reasonably 
have accused him of blindness; nor did the term ‘blind as a bat’ 
seem applicable when you caught the gleam and sparkle of his wicked 
little eyes, peering out from beneath his woolly eyebrows. He evi- 
dently decided that he had chosen an unsafe sleeping place, and for 
a little while the place was deserted; but in a few days I noticed a 
smaller specimen of his race in the opposite corner, and the day fol- 
lowing there were nine of varying size ranged along the upper sash 
in their usual characteristic attitudes. One near the middle of the 
tow was wide awake; washing himself after the manner of a cat, he 
