There has been a lot of talk in Illinois lately about Chimney Swifts. There are apparently still swifts at multiple locations in Illinois, even though there have basically been no prior November records. And while all of these "I saw a Chimney Swift today" posts are getting a bit repetitive, it is still a pretty interesting migratory. Why are Chimney Swifts staying so late this year? Are other areas in the Midwest still seeing Chimney Swifts? This is the type of thing that is up to us birders to document...might even make an interesting article if you coudl find some sort of pattern or explanation for this late migration.
A quick search of several Midwest listserves shows one November Chimney Swift in Ohio but that's about it. (There have been some swifts still along the Indiana lakefront but we consider that to still be in the Chicago area.) Nothing in Iowa, Michigan, or Wisconsin...although this is the kind of thing that might not be reported or even noticed unless you're looking for Chimney Swifts.
So, what is happening here?