Q:

What bird lays blue eggs?

A:

Quick Answer

All three species of bluebirds – eastern, mountain and western – lay blue eggs. The blue eggs may have white streaks that resemble scratches, which may stem from urine or fecal stains, or when the female turns the eggs.

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Full Answer

Eastern bluebirds lay eggs that are powder blue with no dark spots. The eggs have a smooth surface with a subelliptical shape. The mountain bluebird lays eggs that are bluish-white or pale blue, and the eggs are glossy and unmarked. The western bluebird also lays eggs that are light blue or bluish-white. The cell walls along the female's oviduct add coloring to the eggs, but this does not occur with white eggs. White eggs may also have a pink or blue tinge. A small percentage of bluebirds lay white eggs.

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