Birds that Lay Blue Eggs 

Dunnocks Female dunnocks lay a clutch of four to five glossy blue eggs. Their eggs rarely have any speckles and are a brilliant blue.

House Finches Their eggs are a pale bluish-green and may sometimes have light lavender or black markings.

Red-Winged Blackbirds Red-winged blackbirds typically lay between two to four oval, light blue-green eggs per clutch.

American Robins American robins lay three to five light blue eggs per clutch. These eggs measure 0.8 inches wide.

Black Tinamous They lay glossy, bright blue eggs from March to November.

Blue-footed Boobies The eggs of the blue-footed booby are pale blue, and their nests are on the ground. They lay two to three eggs per clutch.

Blue Jays Blue jays lay two to seven eggs per clutch. The eggs are usually blue but can also be other colors, such as yellow or green.

Starlings Starlings lay blue, white, and green eggs. They also prefer to build their nests in man-made structures.