This man is brilliant

Joshua Klein's crow vending machine
and
Joshua Klein speaks about crows and how the machine works

Looks like he's read the book In the Company of Crows and Ravens by John Marzluff and Tony Angell, most of the information in the talk sounds like a fairly direct lift from their studies. Nonetheless, I think the vending machine idea is fairly brilliant.

Thanks to "depleted" for posting the link in his DA journal to begin with, and of course for taking those lovely pictures that my tattoo is based on.