David Tipling / 2020VISION / Small flock of Greylag geese (Anser anser) flying over snow covered fields, Ken-Dee Marshes RSPB reserve, Dumfries and Galloway, Scotland, UK, December

Mark Hamblin / 2020VISION / Greylag goose (Anser anser) pair on edge of loch, near nesting site, Scotland, UK, May 2010

Mark Hamblin / 2020VISION / Greylag goose (Anser anser) adult on water, Scotland, UK, May 2010

Terry Whittaker / 2020VISION / Greylag geese (Anser anser) flying past electricity pylons into Rainham Marsh RSPB Reserve, Thames Futurescapes Project, Essex, UK, January 2011

Ernie Janes / Greylag Goose (Anser anser) landing on water. Norfolk, UK, Europe, April.

Ernie Janes / Greylag Goose (Anser anser) landing on water. Norfolk, UK, Europe, April.

Edwin Giesbers / A flock of Greylag Goose (Anser anser) flying in formation above misty fields. The Netherlands, March.

Fergus Gill / Greylag goose (Anser anser) calling at dawn with its breath showing as a cloud of steam. Serrated tomia (the equivalent of teeth) are visible in its beak. Scotland, Dec .

Andrew Parkinson / Pair of Greylag geese (Anser anser) and chicks spotlit by dawn sunlight near a small weir. Nottinghamshire, UK, May (non-ex)

Robin Chittenden / Greylag goose (Anser anser) on water, Hickling Broad NWT, Norfolk, England, April

Peter Cairns / naturepl.com / Two Greylag geese {Anser anser} in field, Scotland, UK, June

Laurie Campbell / Greylag Goose (Anser anser) with goslings, Isle of Rum NNR, Inner Hebrides, Scotland, UK, June