Summary ²

General description: A blue and rusty songbird found throughout Minnesota.

Length: Seven inches.

Weight: 1 1/4 ounces.

Color: Blue back, rusty breast, and white belly.

Sounds: A warbling song and various call notes.

Reproduction
Bluebirds nest from late March through early August. They build cup-like nests of grass or pine needles in a nest box or some other cavity. The eggs, usually three to five, are pale blue (sometimes white). Typically, two broods are raised during the nesting season.

Food
Bluebirds eat a wide range of insects and wild fruit.

Predators
Birds of prey, snakes, and various mammals--especially cats and raccoons--are the main predators of bluebirds.

Range and range
Bluebirds live in open woodlands, roadsides, farmlands, orchards and occasionally suburbs and city parks. The are found in every county in Minnesota.

Population and management
Bluebird populations declined greatly from the 1930s to the 1960s. The cause was habitat loss and competition from other cavity-nesting birds, especially starlings and house sparrows. The Bluebird Recovery Program of the Audubon Society of Minneapolis partnered with the DNR Nongame Wildlife Program to sponsor workshops, publish education materials and promote the placement of bluebird houses to bring back this wonderful songbird. Minnesota now has one of the most successful bluebird recovery projects in the nation.

Fun facts
Bluebirds are a symbol of happiness. They like to eat meal worms at bird feeders. Male bluebirds are much more brightly colored than females. Although sighting a bluebird is considered an early sign of spring, a few usually linger until late December and some return as early as February.

Fontes e Créditos

1. (c) Patrick Coin, alguns direitos reservados (CC BY-NC-SA), http://www.flickr.com/photos/42264328@N00/373427660
2. Adaptado por Minnesota Scientific and Natural Areas de uma obra de (c) Wikipedia, alguns direitos reservados (CC BY-SA), https://en.wikipedia.org/wiki/Sialia_sialis

Mais informações

• BioDiversity4All taxon page
• Animal Diversity Web
• Biodiversity Heritage Library
• BOLD Systems BIN search
• Global Biodiversity Information Facility (GBIF)
• Maryland Biodiversity Project
• NatureServe Explorer 2.0
• VertNet
• Xeno-canto

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