American birds American cliff swallow American songbirds Animalia Aves Chordata Hirundinidae June North America P. pyrrhonota Passeriformes Petrochelidon Petrochelidon pyrrhonota US USA Wisconsin adult adult cliff swallow adult swallow aluminum siding artificial location avian bird birding birdlife birdwatching building cliff swallow eave eave of house eaves fauna feathers gourd-shaped nest home house house eave in nest jug-shaped mud nest mud mud nest natural nature nest nest on building nest on home nesting nesting cliff swallow nesting swallow north american northern northern Wisconsin northwoods ornithology side of building side of home song bird songbird summer summer time summertime swallow wild wildlife