Jack Dykinga / Snow geese (Chen caerulescens) large flock with some landing, Bosque del Apache, New Mexico, USA, December.

Jack Dykinga / Snow geese (Chen caerulescens) in flight in front of super moon, Bosque del Apache National Wildlife Refuge, New Mexico, USA, December.

Jack Dykinga / Sandhill cranes (Grus canadensis) and Snow geese (Chen caerulescens) Bosque del Apache National Wildlife Refuge, New Mexico, USA, December.

Pal Hermansen / Barnacle geese (Branta leucopsis) with goslings, swimming past icebergs, Jokulsarlon, Iceland, June.

Pal Hermansen / Barnacle geese (Branta leucopsis) with goslings, Jokulsarlon ice field, Iceland, June.

Bence Mate / Graylag gosling (Anser anser) resting under parent's wing, Pusztaszer, Kiskunsagi National Park, Pusztaszer, Hungary.

Bence Mate / Graylag gosling (Anser anser) resting under parent's wing, Kiskunsagi National Park, Pusztaszer, Hungary.

Bence Mate / Graylag gosling (Anser anser) with parent, Lake Csaj, Kiskunsagi National Park, Pusztaszer, Hungary. April.

Gerrit Vyn / Greater snow geese (Chen caerulescens) taking flight at sunset during migration. Montezuma National Wildlife Rescue, New York, USA. March.

Gerrit Vyn / Nene / Hawaiian goose (Branta sandvicensis) Hawaii. April. Vulnerable species.

Roger Powell / Small flock of Brent Geese (Branta bernicla) in flight..Texel Island, The Netherlands, Europe

Pal Hermansen / Barnacle geese (Branta leucopsis) with goslings, Jokulsarlon ice field, Iceland, June.