This story reminded me of another time when I was fishing by a large pond, this pond had a few wild foul on it.
This particular day the spot I was fishing from had a hill behind me that belonged to the farmer, there was a Canada Goose pecking away on the grass of the hill, then all of a sudden...
I used to fish on a pond and there was a Canada Goose with what I thought was a deformed wing.
I phoned the RSPCA about it, luckily a few days later I was fishing there again when this young lady arrived with a big net to catch the Goose.
It fled on to the water so she didn't catch it, I asked...