Eurasian bittern
The River Brue and its tributaries support a population of European eels ("Anguilla anguilla"). Reptiles found include the European adder ("Vipera berus") and grass snake ("Natrix natrix"). Multiple bird species include Bewick's swan ("Cygnus columbianus bewickii"), Eurasian bittern ("Botaurus stellaris"), Eurasian bullfinch ("Pyrrhula pyrrhula"), *Eurasian wigeon ("Anas penelope"), European starling ("Sturnus vulgaris"), gadwall ("Anas strepera"), grasshopper warbler ("Locustella naevia"), hen harrier ("Circus cyaneus"), house sparrow ("Passer domesticus"), linnet ("Carduelis cannabina"), marsh harrier ("Circus aeruginosus"), marsh tit ("Poecile palustris"), merlin ("Falco columbarius"), northern lapwing ("Vanellus vanellus"), peregrine ("Falco peregrinus"), reed bunting ("Emberiza schoeniclus"), short-eared owl ("Asio flammeus"), skylark ("Alauda arvensis"), song thrush ("Turdus philomelos"), teal ("Anas cracca"), willow tit ("Poecile montanus") and yellowhammer ("Emberiza citrinella").