What Happens To Flies In The Winter. So lets find out why birds fly south for the winter. One kind of fly is known by fishermen to be present in certain galls in winter and the fly larvae are consequently used as fish-bait.
Since fleas are opportunistic theyre going to ride pets into the home and hunker down for the cold season since their sole purpose is to feed and repopulate. When flies place regurgitated food on human food it can spread bacteria and disease. The cooler weather chills the bugs down making them fly slower than warm weather flies.
These large sluggish flies sometimes called attic flies appear on warm sunny days during late autumn winter and early spring.
Goldenrod gall flies perform a similar stunt The undead invasion. They stay here gather close together and try to stay in warm places. Development resumes when the water warms again. Although this behavior can be compared to hibernation the truth is that flies do not spend the winter months in a deep sleep like some animals including some species of turtles snakes bats hummingbirds ladybugs skunks and frogs.