Animalia, Aves, Chordata, Empidonax, Empidonax minimus, May, North America, Passeriformes, Tryant flycather, Tryrant, US, USA, Wisconsin, adult, animal, bird, chebeck, chebecker, fauna, feathers, flycatcher, least flycatcher, natural, nature, north american, north woods, northern, northwoods, perch, perched, spring, spring time, springtime, tree branch, tree limb, wild, wildlife