Like a crown jewel, a hummingbird nest is one of the great wonders in all of nature. They are so tiny, so perfect. Yet, few ...

Several hummingbirds have already been spotted in southern U.S. states. Here's when to expect them in New York.

Calliope Hummingbird Identification and Size Measuring a mere 3 inches long and weighing one-tenth of an ounce, roughly the same as a table tennis ball, the Calliope hummingbird is incredibly tiny.