"Things You Wouldn't Know If We Didn't Blog Intermittently."
The AMA mentioned that Rufus is a non-lethal deterrent - he's a Harris hawk, a species that is a little slow to actually catch pigeons. Not that the pigeons hang around to find out.
I found out from the link that Harris Hawks are pack hunters. I never knew such a thing existed.https://www.youtube.com/watch?v=Ai3eVjr0Pzg
Avian pack hunters, that is.