Did you know there are 10 types of Red Crossbill in North America?
The Cornell Lab of Ornithology is studying the different types and they asked for people to send in recordings of the birds calls. I was lucky enough the other day to find a flock of Red Crossbills when I was on the Crane Lake Road driving to town, I used the video on my phone to make the recording. It came out pretty good. Ignore the Blue Jay that is calling in the background.
This recording is a Type 5 or Lodgepole Pine sub-species. And according to researcher, Tim Spahr of Cornell, this type has been only the second time that it has been reported from Minnesota.