Saw 9 roosts for a total of 1450
Largest roost was over 450, smallest was 24.
7 roosts on oak trees the other 2 were on maples. Largest roosts were on the oaks. 20C light winds from the SE.
all roosts were on NW side of trees.
Area of approximately 500Mx500m
I check this area every year and often find roosts but this was the most separate roosts I have found.
Latitude: 43.8 Longitude: -79
Observed by: Brian
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