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Mountain bluebirds are monogamous. After the couple decides together on an ideal nesting site, the female will typically build their nest themselves out of thin, dry material from the surrounding landscape while the male protects the area, defending against unwelcome visitors. It is true, though, that both males and females fiercely protect the ...
The eastern bluebird (Sialia sialis) is a small North American migratory thrush found in open woodlands, farmlands, and orchards. The bright-blue breeding plumage of the male, easily observed on a wire or open perch, makes this species a favorite of birders.
Bluebirds lay an average of 4 to 6 eggs per clutch. They will usually brood two or three times in a year. Bluebirds nest from March all the way through August. Bluebirds have blue, or blue and rose beige, plumage. Female birds are less brightly colored than males, although color patterns are similar and there is no noticeable difference in size.
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The key for a bluebird nest box is to have the hole be exactly 1.5 inches in diameter. Too large of a hole invites starlings and makes it easier for squirrels and other larger rodents to get in ...
Jul. 7—On Thursday, for the first and very likely last time in my life, I visited Mount Rainier and Mount St. Helens on the same day. No bird could be more fitting for this Cascadian journey ...
Nestlings remain in a nest about 19 to 22 days before fledging. In a good year, the parents can rear two broods, with four to six eggs per clutch. According to genetic studies, 45% of western bluebirds' nests carried young that were not offspring of the male partner. In addition, they help their parents raise a new brood after their own nest fails.
The nesting and parental duties are covered only by the females; she builds her nest with stems, twigs, palm leaves, vines, and other materials all by herself, usually in a flat cup-like shape. They mostly lay one egg, but two are less occasional, and the mother is very defensive of her brood.