All photographs copyright (2003-2013) by Kris H. Light

A female Cardinal awaits her time at the feeder. She has fluffed out her feathers to keep warm on a very cold winter day (it was in the low 20's when this photo was taken). Birds' feathers trap a layer of air keeping them warm; birds, like mammals, are...
A female Cardinal awaits her time at the feeder. She has fluffed out her feathers to keep warm on a very cold winter day (it was in the low 20's when this photo was taken). Birds' feathers trap a layer of air keeping them warm; birds, like mammals, are warm-blooded (this is why penguins are able to survive the brutal conditions of Antarctica).

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