Animalia, Aves, Chordata, Dendroica, May, May Spring, Myrtle, North America, Parulidae, Passeriformes, Setophaga, Setophaga coronata, US, USA, Wisconsin, adult, bird, black, breeding plumage, fauna, feathers, male, male warbler, male yellow-rumped warbler, natural, nature, north american, north woods, northern, northern Wisconsin, northwoods, outdoors, perched, song bird, songbird, spring, warbler, white, wild, wildlife, wood warbler, wood-warbler, yellow, yellow-rumped warbler