Another Limey chips in, the UK Rook is a vegetarian, well, insects too I guess, the UK Carrion Crow and the Hooded Crow are scavengers and road kill specialists like the American Crow.
CBL1, how would you rate the Jackdaw, a smaller member of the corvid family? I suspect they raid songbirds nests, do they eat carrion?.
I was in England before Christmas visiting relatives, and I saw, to my delight several jackdaws sitting on my hotel roof, in Witham, Essex. I had a pet jackdaw for years as a boy, smart birds. When I left for Canada in 1976 they were quite scarce.
Mike