Animalia, Aves, Chordata, Hirundinidae, June, North America, Passeriformes, T. bicolor, Tachycineta, Tachycineta bicolor, US, USA, Wisconsin, adult, beautiful, bicolored, bird, bird house, birdhouse, blue, blue-green, cavity nest, fauna, feathers, house, iridescent, male, natural, nature, nest, north american, north woods, northern, northwoods, outdoors, song bird, songbird, striking, summer, summer time, summertime, swallow, tree swallow, wild, wildlife, wren house, songbird, song bird, bird, backyard bird, backyard