Bence Mate / Bittern (Botaurus stellaris) with marsh frog (Rana ridibundus) that has just woken up from hibernation, Kiskunsag National Park, Hungary. Honoured in the Montier Photo Awards 2020.

Oscar Dewhurst / Great bittern (Botaurus stellaris) with recently caught fish prey in beak. Suffolk, UK. November.

Oscar Dewhurst / Great bittern (Botaurus stellaris) head and neck, looking up through reeds. Suffolk, UK. November.

Oscar Dewhurst / Great bittern (Botaurus stellaris) in flight over water. London, UK. December.

Oscar Dewhurst / Great bittern (Botaurus stellaris) portrait. Suffolk, UK. November.

Robin Chittenden / Bittern (Botaurus stellaris) feeding on fish, Suffolk, England, UK, November.

Robin Chittenden / Bittern (Botaurus stellaris) in reeds, Suffolk, England, UK, November.

Sven Zacek / Great bittern (Botaurus stellaris) with fish in beak, caught in stream. Laanemaa, Western Estonia. March.

Dave Bevan / Bittern (Botaurus stellaris) hunting and catching a fish, Suffolk, England, UK, October.

Bence Mate / Bittern (Botaurus stellaris) with fish prey, with head feathers raised, Lake Csaj, Kiskunsagi National Park, Pusztaszer, Hungary.

Bence Mate / Bittern (Botaurus stellaris) with Great egret (Ardea alba) in the background, Lake Csaj, Kiskunsagi National Park, Pusztaszer, Hungary.

David Tipling / 2020VISION / Bittern (Botaurus stellaris) camouflaged amongst reeds in winter, Slimbridge WWT, Gloucestershire, UK, February. Did you know? The call of a bittern can carry for more than a kilometre.

David Tipling / 2020VISION / Bittern (Botaurus stellaris) walking on ice, Slimbridge WWT, Gloucestershire, England, UK, February. 2020VISION Book Plate.

Chris O'Reilly / Bittern (Botaurus stellaris) Adult wading through water amongst reeds, Winter, UK, Wild

George McCarthy / Bittern (Botaurus stellaris) standing in grass. Lesvos, Greece, Europe

Hanne & Jens Eriksen / Eurasian bittern (Botaurus stellaris) female near reeds, Denmark, April

Hanne & Jens Eriksen / Eurasian bittern (Botaurus stellaris) male displaying and walking in shallow water, Denmark, April

Hanne & Jens Eriksen / Eurasian bittern (Botaurus stellaris) male displaying near female, Denmark, April

Robin Chittenden / Bittern (Botaurus stellaris) in flight, Suffolk, England, UK, June.

Oscar Dewhurst / Great bittern (Botaurus stellaris) pair in open area. Suffolk, UK. November.

Oscar Dewhurst / Great bittern (Botaurus stellaris) walking throug cut reeds. Suffolk.

Oscar Dewhurst / Great bittern (Botaurus stellaris) with recently caught prey. Suffolk, UK. November.

Oscar Dewhurst / Great bittern (Botaurus stellaris) stretching wing in area of cut reed. Suffolk, UK. November

Oscar Dewhurst / Great bittern (Botaurus stellaris) with common rudd (Scardinius erythrophthalmus) prey. Suffolk, UK. November

Oscar Dewhurst / Great bittern (Botaurus stellaris) walking through reedbed channel whilst hunting. Suffolk. November.

Oscar Dewhurst / Great bittern (Botaurus stellaris) standing in reeds in a channel. Suffolk, UK. November.

Oscar Dewhurst / Great bittern (Botaurus stellaris) walking through reedbed channel whilst hunting. Suffolk, UK. November.

Oscar Dewhurst / Great bittern (Botaurus stellaris) in flight over reed bed. London, UK. February

Oscar Dewhurst / Great bittern (Botaurus stellaris) standing in reeds at the water's edge in threat posture. London, UK. February.

Oscar Dewhurst / Great bittern (Botaurus stellaris) standing in reeds at the water's edge. London, UK. February.

Oscar Dewhurst / Great bittern (Botaurus stellaris) in flight over water. London, UK. February.

Oscar Dewhurst / Great bittern (Botaurus stellaris) in flight over water. London, UK. February.

Oscar Dewhurst / Great bittern (Botaurus stellaris) standing in reeds at the water's edge. London, UK. February.

Oscar Dewhurst / Great bittern (Botaurus stellaris) standing in reeds at the water's edge. London, UK. February.

Oscar Dewhurst / Great bittern (Botaurus stellaris) perched in reedbed. London, UK. February

Oscar Dewhurst / Great bittern (Botaurus stellaris) female showing threat display to crows out of shot. Suffolk, UK. June.

Oscar Dewhurst / Great bittern (Botaurus stellaris) female in flight returning to nest after feeding. Suffolk, UK. May.

Oscar Dewhurst / Great bittern (Botaurus stellaris) female flying away from its nest to feed. Suffolk, UK. May.

Oscar Dewhurst / Great bittern (Botaurus stellaris), female flying from nest to feed, Suffolk, UK. May.

Oscar Dewhurst / Great bittern (Botaurus stellaris) female in flight over reed bed back to nest. Suffolk, UK. May.

Oscar Dewhurst / Great bittern (Botaurus stellaris) female coming in to land at nest having fed. Suffolk, UK. May.

Oscar Dewhurst / Great bittern (Botaurus stellaris) hunting in reeds. Suffolk, UK. May

Oscar Dewhurst / Great bittern (Botaurus stellaris) roosting in reedbed with Charing Cross hospital behind. London, UK. January

Oscar Dewhurst / Great bittern (Botaurus stellaris) with recently-caught prey in marshy pool. Suffolk, UK. March.

Oscar Dewhurst / Great bittern (Botaurus stellaris) hunting in marshy pool. Suffolk, UK. March

Oscar Dewhurst / Great bittern (Botaurus stellaris) portrait in marshy pool. Suffolk, UK. March

Oscar Dewhurst / Great bittern (Botaurus stellaris) in marshy pool. Suffolk, UK. March.

Oscar Dewhurst / Great bittern (Botaurus stellaris) portrait. Suffolk, UK. November.