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An Eastern Bluebird checks out a feeder. ... the bluebirds build their nest in early April and can lay their clutch of eggs any time after that — laying one egg a day — then starting to ...
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 bluebirds are a North American [1] group of medium-sized, mostly insectivorous or omnivorous birds in the order of Passerines in the genus Sialia of the thrush family (Turdidae). Bluebirds are one of the few thrush genera in the Americas. Bluebirds lay an average of 4 to 6 eggs per clutch. They will usually brood two or three times in a year.
Volunteers at Maybury State Park keep an eye on bluebird nesting boxes, watching for predators, counting eggs and fledglings.
Eggs of Sialis fuliginosa. Females lay on the leaves of the shore plants up to 2000 eggs in groups of about 200. The resulting hatching larvae fall directly into the water. They live in the water at first, and later buried in the mud, up to 18 meters of depth. These larvae feed on larvae of insects, worms and small molluscs.
A male eastern bluebird clings to the opening of the pair's chosen nest box. Bluebirds have two or three nestings per year so do not give up trying to attract them.
The number of eggs laid in a single brood is referred to as the clutch. Clutch size is usually within a small range of variation. Some birds respond to the accidental loss of eggs by laying a replacement egg. Others will stop laying based on the apparent size of the clutch.
The mountain bluebird is a relative of the eastern and western bluebirds. Taxonomy ... Once the nest is built, the female will lay an egg a day. Eggs are pale blue ...