What are these cranes doing?

Photo ICF Tracking Team

Are these one-legged cranes? No. Lawn ornaments? No. They are adult male #506 and seven 2009 Direct Autumn Release (DAR) juveniles trying to stay warm in Jefferson County, Kentucky! They've each tucked one foot into their feathers to keep warm. The group moved to Adair County, Kentucky, reports the tracking team. Is it warmer there?