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  makes it one of the world's most enchanted avian creatures.  Its blinding iridescence, throbbling wing action, and aerial acrobatic ability make this small bird as much a visual feast as a symbol of energy, determination, and evolutionary ingenuity.  From the Americas' rain forests to backyard feeders worldwide, the hummingbird fascinates observers with its graceful aerial feats and awe-inspiring biological achievements. A Brief Introduction: Hummingbirds make up the family Trochilidae, with over 360 species found primarily in the Americas Alaska south to Tierra del Fuego, though the majority of species live in Central and South America.  Hummingbirds are the only birds that can fly backward and hover in the air because of their unique wing shape and muscular build.  Ranging in size from as little as the 2-inch bee hummingbird of Cuba, the world's smallest bird, to as much as the 8-inch Andean giant hummingbird, they are incredibly diverse and colorful.  ...