how many times do bluebirds nest per year
Normally, bluebirds raise two to three broods per year, often using the same nesting site each year. The female selects a proper nesting site 4 to 6 feet above the ground in a cavity or hole excavated by another animal. The nest is a neat, cup-shaped structure made of fine grass. The female lays one egg per day for 4 to 6 days in the nest, and then incubates the pale blue eggs for 12 to 14 days. Soon after hatching, the youngsters sprout feathers. They have gray backs coupled with spotted white breasts and only a hint of blue in the wing and tail feathers at this time.