As anyone heard of another example of migratory dimorphism?
Probably not since I just coined the term :-) Or at least I think so . . .
Nevertheless, this the only reference I am able to find where males
overwinter north of their breeding territory while females migrate south.
The hypothesized reason for the behavior seemed reasonable to me when I
first listen to it, but as I think about it more - it doesn't.
Hoping others are as interested as I am in hearing about other possible
explanations.
The Burrowing Owl Segment of the program is the first 10 minutes. So it's
easy to get to.
https://watch.opb.org/video/season-30-episode-5-am9nb5/
Jack Williamson
West Linn, Oregon
