A now-viral video gave nature lovers a rare glimpse of a hummingbird delicately perched on its tiny nest, nurturing an egg.

Even if you have a garden buzzing with these tiny birds, you may have never seen a hummingbird nest before. Spotting their nesting site can be like finding a needle in a haystack. However ...

Size is not an accurate indicator of hummingbird age, as young hummers are actually larger than their mother when they leave the nest (as is the case with most bird species). The additional mass ...