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Predators of young bluebirds in the nests can include snakes, cats, and raccoons. Bird species competing with bluebirds for nesting locations include the common starling, American crow, and house sparrow, which take over the nesting sites of bluebirds, killing young, smashing eggs, and probably killing adult bluebirds. [6] Male western bluebird
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.
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.
Mountain bluebirds are cavity nesters and can become very partial to a nest box, especially if they have successfully raised a clutch. They may even reuse the same nest, though not always. These birds will not abandon a nest if human activity is detected close by or at the nest.
Generally, the first nesting is the most challenging for the bluebirds due to traditional cool spells in late April and early May that affect the food supply for the young. But this very pleasant ...
Volunteers at Maybury State Park keep an eye on bluebird nesting boxes, watching for predators, counting eggs and fledglings. ... 24/7 Help. For premium support please call: 800-290-4726 more ways ...
The nest is preferentially built at a height in the trees of 3 to 10 m (10 to 33 ft). It is cup-shaped and composed of twigs, small roots, bark strips, moss, other plant material, cloth, paper, and feathers, with occasional mud added to the cup. Blue jays are not very picky about nesting locations.
The nest is usually in a conifer, but is sometimes built in a hollow in a tree or beneath the awning of a house or other structure. Similar in construction to the blue jay's nest, it tends to be a bit larger (25 to 43 cm (9.8 to 16.9 in)), using a number of natural materials or scavenged trash, often mixed with mud.