Anatiadae, Animalia, Anseriformes, Aves, Chordata, Hooded merganser, L. cucullatus, Lophodytes cucullatus, Merginae, North America, US, USA, Wisconsin, alone, animal, aquatic, bird, dimorphic, duck, environment, habitat, hood, juvenile, lake, merganser, natural, nature, north american, north woods, northwoods, one, pond, single, stream, summer, summer time, summertime, swim, swimming, water, wet land, wetland, wetlands, wild, wildlife