The eastern bluebird, Sialia sialis, is among the first spring arrivals in the North. It is about 7 in. The female's coloring is duller. The bluebird usually nests in orchards or on the edges of woodlands but will also use nesting boxes.
Bluebirds have a cheerful call and a sweet, warbling song.
They raise several broods during a single mating season. The female is responsible for the incubation duties. Bluebirds are classified in the phylum Chordata , subphylum Vertebrata, class Aves, order Passeriformes, family Turdidae. Listing from Electric Library , a pay service. Copyright 2001 Infonautics Corporation .