Most of the Redpolls that we see are Common Redpolls. But there is another species, Hoary Redpoll, which is a rare visitor to Minnesota. They look a lot like Common Redpolls but are whiter and sometimes described as “frosty” looking. It can be hard to tell a Hoary Redpoll from a Common Redpoll. However, on the underside of this bird, especially under the tail, there are pure white feathers with no brown streaking. That is a definite field mark of a Hoary Redpoll.