Here's another picture that I took today with the SLR. I don't know if it helps, but maybe one of you will recognize a detail. I also have more pictures.
Thanks your very much for the ideas and advice so far. The condition of angel wing is known to me. It's bad but the goose has its Angel Wing buddies around at this pond and the flock is very defiant ant resolute so they protect against people who bother them.
Concerning to me is the missing of...
Thanks for your reply. Yes, the whole flock has angel wings and they are wild ones. Concerning to me at the moment is the missing of big feathers on the upper back interdirection of the neck.
Hello everyone.
Three weeks ago I noticed a defect in the feathers on the neck of one goose. This has grown larger since then, as can be seen in the attached picture. The animal lives in a group of six Canada geese, all of which have tilting wings, at a small pond. Can you help me identify the...