Date: 09/16/2015

Number: 50

Saw 50 or more gathered in a large cottonwood tree in Nipper Wildlife Sanctuary at about 5:30 pm and pic was snapped on my phone at a bit after 6 pm. I cannot say if that was first night (9/16) of the roost or if it had been established earlier.

The tree I photographed them in sits at the north border of a large native plant prairie and the woods that border the prairie. They would be shielded from a north wind in this tree as to the north are woods, to the south open prairie. Many were feeding on prairie Ironweed (purple flowered plant). Lots of plants to feed on. Evening low was around 58 degrees. This branch was closest to the ground. Many more higher..

Springfield, IL

Latitude: 39.8 Longitude: -89.6

Observed by: Joe
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