American birds, American songbirds, Animalia, Aves, Chordata, June, New World warbler, North America, Parulidae, Passeriformes, S. petechia, Setophaga, Setophaga petechia, US, USA, Wisconsin, adult, avian, bird, birding, birdlife, birdwatching, breeding plumage, brush, bush, caterpillar, fauna, feathers, feeding, food for offspring, food for young, food in beak, green, green caterpillar, male adult, male bird, male feeding, male songbird, male warbler, male with caterpillar, male with food, male with green caterpillar, male yellow warbler, natural, nature, north american, northern, northern Wisconsin, northwoods, ornithology, perch, perched, shrub, small songbird, song bird, songbird, songbirg, spring, spring warbler, summer, summer time, summertime, warbler, wild, wildlife, with food, yellow, yellow throat, yellow warbler, yellow warbler holding food