"sign of spring", 8.5", Agelaius, Agelaius phoeniceus, Animalia, Aves, Chodata, Icteridae, May, North America, Passeriformes, USA, Wisconsin, adult, animal, beak, bill, bird, black, black bill, blackbird, brown, build, building nest, cattail, cattails, environment, fauna, feathers, female, grasses, gray, habitat, large bird, marsh, marsh bird, natural, nature, nest, nest materials, nesting, nesting materials, north american, north woods, northern, northwoods, outdoors, outside, perch, perched, perching, plain, red winged, red-winged, red-winged blackbird, redwinged blackbird, sign of spring, song bird, songbird, spring, spring time, spring-time, springtime, stripped, strips, wetland, white, white and brown, wild, wildlife, wings