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

Ernie Janes / Bittern (Botaurus stellaris) feeding Minsmere RSPB Reserve, Suffolk, England, UK, November.

Ernie Janes / Bittern (Botaurus stellaris) feeding Minsmere RSPB Reserve, Suffolk, England, UK. November.

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.