The smallest hummingbird in the world is as long as a toothpick and weighs less than a cube of sugar. At just over two inches long and weighing a mere two grams, the bee hummingbird (Mellisuga helenae ...

Some hummingbirds will embark on their fall migration, a move tracked by birdwatchers nationwide who are eager to spot these tiny birds fluttering in their gardens or to their feeders. But ...