Feral Pigeon

Is this really a separate species? The RSPB lists them as a Rock Dove, but they seem to sit somewhere between the larger Wood Pigeon, and the prim and proper Collared Dove. Flying rats, but the diversity of colours can be interesting - thought to have descended from freed racing pigeons... Very obviously green status, and there's more information on the RSPB site.

Figgate Park
Duddingston
27/02/11
anthony robson
flickr link

Union Canal
Merchiston
30/11/10
anthony robson
flickr link

Dean
Water of Leith
11/10/10
anthony robson
flickr link

Castle Street
New Town
21/03/09
anthony robson
flickr link