Hooded Crows / Wrona siwa - Corvus cornix
Taken in a Park in Warsaw - added to the UK groups as they can be found here too.
Edit 22/05/2012: Hi and thanks to all tumblr followers for viewing. Feel free to find more corvid photos in my photostream. (Shame the 700+ views do not show on here.)
Edit 24/09/2016: Hi and thanks to all Pinterest viewers. From what I can make out this photo has been pinned/shared over 10,000 times. This makes this photo probably my most popular.