An online resource based on the award-winning nature guide

Winter Crane Fly

Earlier this week, when temperatures were in the 40’s and the sun was shining in the late afternoon, there were clusters of male winter crane flies (Trichocera sp.) hovering two or three feet above the snow, bobbing up and down as they did their mating dance. Females are on the surface of the snow most of the time, but join a swarm in order to find a mate. Winter crane flies are active throughout the winter, as their name implies, and are a source of food for resident songbirds.  The larvae feed on decaying vegetation, and can be found in leaf litter, shelf fungi and compost heaps.

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