Snow is falling softly, silently outside my window. It is predicted to be a light snow for an hour or so before turning to ...

People in northern climates are familiar with flocks of birds flying south in the winter, but why do they do it, and why ...

"Even a bird like the black-capped chickadee which is really tiny — less than 10 grams — its feathers can keep it really warm, even in temperatures -10F or lower, as long as the plumage is in ...