Has anyone seen breeding pairs of a definite Common Redpolls with "definite" Hoary Redpolls? Are there thought to be identifiable hybrids? Probably an obvious question, but the blog post doesn't say anything about whether they are known to interbreed or not.
Greetings all,This has appeared on the CT and Mass listserves, and it seems appropriate to spread it north into the rest of New England!Pam HuntConcord, NH