Marie Read / Canada geese (Branta canadensis) two during territorial fight in early spring, Ithaca. New York, USA

Steve Downer / Close up of a Canada goose gosling (Branta canadensis) sleeping, with other goslings in the background, Birmingham, England, UK, June.

Marie Read / Canada goose (Branta canadensis) adult swimming leading five goslings, Ithaca, New York, USA.

David Pattyn / Canada goose (Branta canadensis) group of adults with young chicks. The Netherlands. June 2014

David Pattyn / Canada goose swimming portrait (Branta canadensis) The Netherlands. March 2013.

Laurent Geslin / Canada goose (Branta canadensis) grazing at Walthamstow reservoir, London, UK

Laurent Geslin / Two Canada geese (Branta canadensis) amongst grass and flowers. Walthamstow reservoir, London, UK

Laurent Geslin / Canada goose (Branta canadensis) with two chicks / goslings in tall grasses, Walthamstow reservoir, London, UK

Donald M. Jones / Canada Goose (Branta canadensis) flying, central Montana

Donald M. Jones / Canada Goose (Branta canadensis) group flying, central Montana

Donald M. Jones / Canada Goose (Branta canadensis) flying, central Montana

Donald M. Jones / Canada Goose (Branta canadensis) flock flying, central Montana