Posted: 25/11/2015 at 16:41
I've just looked at the link Dove gave above and confess to being a bit puzzled.
I first learned of the existence of Bumblefoot with regard to Chaffinches some 35 years ago. The person who told me about it was a veterinary technician with the ZSL and a very enthusiastic and knowledgeable "bird" person to boot. I took it for granted he knew what he was talking about.
The RSPB link only mentions Bumblefoot in relation to larger birds ( Crows, Raptors etc ) and then, as Dove says, mentions another viral infection for chaffinches causing tumours on the feet.
Can't get close enough to the bird in question to see properly but too close when I do see it to use my binocs. The whole foot seems affected from toes to hock and I just assumed I was looking at an instance of Bumblefoot.
Anyway, thanks all for your responses. I might ask around my neighbours and see if they have noticed anything.