Animalia, Aves, Chordata, July, North America, Passeriformes, US, USA, Vireo olivaceus, Vireonidae, Wisconsin, bird, black, distinctive, environment, fauna, feathers, habitat, natural, nature, north american, north woods, northern, northwoods, outdoors, red, red iris, red-eye, red-eyed vireo, song bird, songbird, summer, vireo, wild, wildlife