 Black-capped chickadees are year-round resident in Maine and probably one of the most common birds to visit your feeders. Cold winters can be tough on birds, but chickadees are well equipped for survival. By fluffing up their feathers, known as pylorection, they trap and warm air around themselves. This acts as insulation and helps keep them warm. Also, chickadees are able to enter a regulated hypothermia at night, dropping their body temperature by about 14%. This allows for a great reduction in the amount of energy they have to expend at night. The chickadee seen here is one of two that chose to roost under the shade of our building at Gilzland Farm, just as another winter storm was setting in.