beach feeding gaggle geese water canadian duck ducks flock flying frozen goose ice lake marsh November october pold sitting swimming walking winter adult Anser baby beak bird communal community England english gosling grass graze Great Britain greylag group honk meet natural nature neighbours peck protect vertebrate young birds coast coastal creation environment environmental gander gathering migrate migrating migration ocean ornithology plumage preserve sanctuary sea seaside snow geese snow goose white wild wildlife anserini big big-bird colors colours confrontational daring domesticated farmyard-animal feathers feathery fowl greenery guards orange orange-beak tail textures variations varieties variety visibility vocal waddle watch-animal waterfowl webbed-feet weeds wings blending blue-eyed Camouflage enclosure farmyard gray grey guard multi-colored Multi-Coloured papyrus reeds water-garden