I've heard of something called crow court where it is alledged that crows gather in a circle around a particular crow which has commited some crime.  They then either let it free or peck it to death. 
I would like to know if this is real or some urban myth.

Hi Joe,

Crows have so many legends around them. They are wonderfully intelligent birds, with very interesting behaviour, which I'm afraid don't include a legal system like the one you describe...

Corvus: A Life With Birds, by Esther Woolfson, is a brilliant book about crow behaviour from someone who rescued birds.

Hope this helps!