Anisodactyly

This big word refers to the toe arrangement of most songbirds, to include this white-breasted nuthatch, and eagles, hawks and falcons, too: three toes face forward, one backward • Woodpeckers, parrots, flickers and cuckoos are Zygodactyly with two forward toes, and two backward • Actually, there are three more unique toe arrangement groups, in case you’re wondering • Birds are digitigrade because they stand on their toes vs. Humans who are Plantigrade because we stand flat on our feet • Isn’t it fun to be a bird brain? :)) • Enjoy the rest of your Sunday!