Common and hoary redpolls are 2 closely related finches of the boreal forest and Arctic tundra scrub. The common is the more widespread species of the 2, usually inhabiting subarctic forest during ...

Watch your feeders in winter for a common redpoll. The house finch is commonly found throughout much of the Lower 48. The range of the purple finch is restricted to the dense forests of the West ...

After studying the DNA of 77 redpolls, researchers found almost no genetic difference between common and hoary redpolls. As ...