Thanks for the ping, Beaversmom!
That looks like a Eurasian jackdaw, which is native to Europe/Asia (and very very rarely seen in America).
Basically, it's the Eurasian equivalent to the American crow. SUPREMELY intelligent too, as are ALL corvids.
It's hard to decide though if it is actually "playing" or trying to figure out how to get at the goodies in that ring (while not slipping).
My vote?
Call me undecided. Ha ha!