Date: 08/26/2005

Number: 1

Strong, tight roosts on 08/21 through 08/24 each night it was 55°f or lower. 55°f and lower seems to really encourage the concentrated roosts. Each day there are thousands nectaring on the flowers but on the warmer nights they roost in the trees as singles or groups of 5 or less. I've been experimenting with finding roosts. I have found several by looking for overgrown fields or ditches with many flowers blooming I then look for the nearest groups of trees. Then I return in the evening or early morn. So far I have had success 4 out of 5 locations. I think the key to finding roosts is very much dependent on finding the nectar source. Even when migrating hard they seem to stop for a sip.

Cannon Falls, MN

Latitude: 44.5 Longitude: -92.8

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