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Leucistic Anna's hummingbird in the Australia Garden, UCSC Arboretum, Santa Cruz, California

Leucistic Anna

Leucistic Anna's hummingbird in the Australia Garden, UCSC Arboretum, Santa Cruz, California (© yhelfman/Getty Images)

National Go Birding Day

Get your binoculars and field guide and head to a local park, as it's National Go Birding Day! Held on the last Saturday in April, this holiday celebrates birdwatching, an activity enjoyed by millions worldwide. There are approximately 18,000 known species of birds around the world. Birds come in a wide range of shapes, sizes, colors, and behaviors, making them one of the most diverse groups of animals on Earth—from imposing eagles to today's tiny snowy-winged star, a leucistic Anna's Hummingbird. These hummingbirds are typically vibrant in color, but leucism means that they have decreased pigmentation, resulting in a paler appearance. Unlike albino birds, these hummingbirds retain some color in their eyes. Their lighter plumage reduces protective camouflage, making them more vulnerable to predators such as hawks and feral cats.
© yhelfman/Getty Images