Greylag
Goose, Anser anser
The ancestor of most domestic geese worldwide, the Greylag is an common resident bird in Britain, in the south partly through re-introduction.
Note the bicolored bill, black and pink, which is not usual among Greylags. The Asian subspecies rubrirostris has a pink bill, compared to the orange bill of the European nominate subspecies, seen in the two pictures above.