By Gavin Leighton Although most birds of North America are incredibly diverse, some species look very, very similar. One pair of species that look surprisingly similar are Hairy and Downy Woodpeckers. When two species look similar to one another, it’s not a stretch to assume they have a close evolutionary relationship. But in the case … Continue reading Why do Downy and Hairy Woodpeckers look so similar when they aren’t close relatives?