A friend of a friend just cut down a dead tree a few days ago and at least 30 flyers came out and went flying through the trees...with temperatures well below freezing, hopefully they went straight to find another nest (they may have several in an area). I have heard that they nest 20-40 individuals in a nest during the winter which is one reason I didn't feel comfortable releasing my 3 in November when they were finally old enough. This story confirms my decision. Hopefully in the spring they will have plenty of time to find snuggle buddies for winter 2011-2012!