55 Canada geese 26 mute swan 60 black h gulls 6 tufted ducks 25 mallard 10 herring gull 10 lesser b b gulls 12 chaffinch two of the chaffinch juvs had fungus growths on both legs and one had lost half a leg anyone have any idea why
55 Canada geese 26 mute swan 60 black h gulls 6 tufted ducks 25 mallard 10 herring gull 10 lesser b b gulls 12 chaffinch two of the chaffinch juvs had fungus growths on both legs and one had lost half a leg anyone have any idea why
Glamorgan Bird Club 
These are caused by mites (genus Knemidocoptes). The scales are dry encrustations made up of material produced by the bird in response to the irritation caused by the mites, together with skin debris thrown up by the mites as they burrow into the tissues.