Wintering wildfowl include small numbers of whooper swan. The lake is also on the migratory path of the whooper swan. He described Bewick's swan in 1830, distinguishing it from the larger whooper swan. The Mute Swan, Whooper Swan and Spoonbill can be found here. Threatened species present here include whooper swan and golden plover. The whooper swan is similar in appearance to Bewick's swan. Bird species on the island include Greenland white fronted goose, whooper swan and greylag goose. Whooper swan can sometimes be found while spotted redshank are not uncommon. Migratory birds include the whooper swan and tundra swan, among others. Other rare species found in the park include the whooper swan, peregrine falcon and corncrake.