Although mainly terrestrial (or in water), unusually for geese and shelduck, they perch on fences and branches.
The male is a little larger than the female, both with similar plumage but different sounds.
"If there is a god . . ."
The white, green and black wing (like the Ruddy Shelduck) shows in flight.
Size comparison: mallard, shelduck and Canada goose.
With goslings.