What Bird Lays Blue Eggs? 26 Birds with Blue Eggs
Birds lay eggs in all kinds of colors, and blue is one of the most striking. It doesn't just look beautiful in a nest, it also plays a role in survival, from helping eggs blend in to signaling the mother's health.
Let's explore the remarkable birds that lay blue eggs, spanning across different continents and habitats.
Why Do Some Birds Lay Blue Eggs
Some bird eggs that are blue because of differences in the pigments that give the eggs their color. The color of bird eggs primarily comes from biliverdin (which gives the egg a blue or bluish-green hue) and protoporphyrin (which produces reddish-brown or brown spots). Blue eggs are usually formed when the female bird deposits biliverdin into the eggshell before laying the egg.
What Bird Lays Blue Eggs
If you're wondering what bird lays blue eggs, the answer is: many do, especially among songbirds (passerines), but some seabirds and wading birds also lay pale blue eggs. Below are 26 birds with blue eggs, with notes on their typical egg appearance and nesting habits to help with identification.
Eastern Bluebird
The Eastern Bluebird is a small, vibrant songbird native to North America, known for its striking blue plumage and rusty-red breast. Males tend to be more vibrant, while females have softer, more muted tones.
They prefer open areas like woodlands, farms, and orchards, nesting in tree cavities or nest boxes. Their diet is mostly insects and berries, and you’ll often spot them perched on fence posts or gliding low over fields. Their melodious songs and beneficial insect control make them cherished by visitors in many areas.
The Eastern Bluebird lays eggs that are usually light blue, though white ones do show up from time to time. The blue bird eggs are smooth with a slight sheen, measuring about 0.8 by 0.6 inches. A typical clutch includes 3 to 7 eggs, and the female incubates them for about 13 to 16 days. These blue eggs are laid in nests made of grasses, pine needles, and other plant materials, usually tucked inside tree cavities or nest boxes.
American Robin
The American Robin is a familiar bird in backyards and parks across North America. You'll often see it hopping over the lawn, pulling up earthworms, or picking off insects. In colder months, it switches to fruits and berries.
American Robins are known for their melodious song, often heard at dawn and dusk. They're usually among the first birds you hear in the morning, a classic sign that spring is on the way.
They build neat, cup-shaped nests using mud, grass, and twigs, usually tucked into trees, shrubs, or even on building ledges.
The eggs of the American Robin are a distinctive light blue color, often referred to as "robin's egg blue". They're smooth, slightly glossy, and about 1.1 inches long and 0.75 inches wide.
A typical nest holds 3 to 5 eggs. The female takes care of incubation, which lasts around 12 to 14 days before they hatch. Those light blue bird eggs are one of the most recognizable signs of robin nesting season.
Eurasian Jackdaw
The Eurasian jackdaw is a small crow found across Europe, western Asia, and North Africa. It has glossy black feathers, a soft gray patch on the back of its head, and pale, eye-catching eyes that make it easy to spot.
Jackdaws are social and curious birds. They often gather in large groups and show surprisingly complex behavior. You'll find them in all kinds of places, from countryside fields and forests to busy cities. They are omnivorous, feeding on a diverse diet that includes insects, seeds, fruits, and human food scraps.
Eurasian jackdaw eggs are usually pale blue or blue-green, with darker speckles and blotches. They're smooth with a slight sheen, measuring about 3.4 cm (1.3 inches) long and 2.4 cm (0.9 inches) wide.
The female incubates the eggs for around 17–18 days. Once they hatch, both parents help feed the chicks. These eggs are usually laid in nests built in tree cavities, cliffs, or even buildings, showcasing the jackdaw's adaptability and resourcefulness.
Eurasian Magpie
The Eurasian Magpie is a striking bird known for its bold black and white plumage and long, iridescent tail. Found across Europe and Asia, these intelligent and highly adaptable birds are members of the crow family.
Magpies are social birds, often seen in pairs or small groups, and they communicate through a range of calls. You'll spot them in all kinds of places, from woodlands and farmland to urban areas, where they feed on almost anything, including insects, small animals, seeds, and leftovers.
Eurasian Magpie eggs are usually blue-green with brown speckles. They have a smooth, slightly glossy surface and measure around 1.3 by 0.9 inches. Magpies build large, domed nests out of sticks, typically high up in trees. Both parents share the work of incubating the eggs and raising the chicks.
Emu
The emu is the world's second-largest bird and is native to Australia. It can grow up to about 6 feet tall, with a long neck, powerful legs, and shaggy brown feathers that help it blend into its surroundings.
Emus live in a wide range of habitats, from forests and grasslands to dry, open areas. They can't fly, but they're strong runners and can reach speeds of up to 30 miles per hour. They have a diverse diet that includes plants, seeds, insects, and small animals. Their booming calls and drumming sounds are distinctive and can be heard over long distances.
Emu eggs are large and dark green to blue, with a rough, textured shell. They’re about 5 inches long, 3.5 inches wide, and weigh roughly 1.1 pounds. After the eggs are laid, the male emu takes over. He incubates them for around 8 weeks and then cares for the chicks once they hatch. It's a rare and striking example of fatherly care in the bird world.
Western Bluebird
The Western Bluebird, found in open woodlands and farmlands of western North America, is a close relative of the Eastern Bluebird. With its vivid blue plumage and gentle song, it brings a splash of color to the western landscapes. They lay sky-blue eggs in tree cavities or nest boxes.
- Western Bluebird Eggs Picture
American Goldfinch
The American Goldfinch is a small finch with bright yellow plumage found across North America. Known for its acrobatic flight and sweet song, this bird frequents gardens and meadows. Goldfinches lay pale blue birds eggs in a small, cup-shaped nest high in a tree or shrub.
- American Goldfinch Eggs Picture
Red-winged Blackbird
The Red-winged Blackbird, recognizable by its black body and red shoulder patches, inhabits marshes and wetlands across North America. These birds are highly territorial and known for their distinctive calls. They lay blue-green eggs with brown markings in nests built among reeds and cattails.
- Red-winged Blackbird Eggs Picture
Blue-Gray Gnatcatcher
The Blue-Gray Gnatcatcher is a tiny, insectivorous bird found in woodlands and forests across North and Central America. With its slender build and distinctive blue-gray plumage, it is an active forager. These birds lay delicate blue eggs in a small, cup-shaped nest.
- Blue-Gray Gnatcatcher Eggs Picture
Blue Jay
The Blue Jay, with its vibrant blue and white plumage and bold personality, is a familiar sight in North American forests and suburban areas. Known for its loud calls and intelligence, the Blue Jay builds a large, sturdy nest where it lays blue-green eggs.
- Blue Jay Eggs Picture
Black Tinamou
The Black Tinamou, a ground-dwelling bird found in Central and South American forests, is known for its elusive nature and haunting calls. These birds lay glossy, blue-green speckled eggs in a simple ground nest, well-hidden among the undergrowth.
- Black Tinamou Eggs Picture
Northern Mockingbird
The Northern Mockingbird, famed for its mimicking ability, is found throughout North America. These birds have gray plumage and are known for their diverse and complex songs. Mockingbirds lay blue speckled eggs in a cup-shaped nest built in shrubs or trees
- Northern Mockingbird Eggs Picture
Blue-footed Booby
The Blue-footed Booby, a seabird found along the Pacific coasts of Central and South America, is known for its distinctive blue feet and dramatic courtship displays. These birds lay pale blue eggs in a shallow scrape on the ground, often on rocky islands.
Mountain Bluebird
The Mountain Bluebird, found in the western United States and Canada, is known for its brilliant sky-blue plumage. These birds inhabit open country and are often seen perched on fence posts. They lay small blue eggs in tree cavities or nest boxes.
Blue Finch
The Blue Finch, a small passerine bird found in South America, is known for its vibrant blue plumage and cheerful song. These birds lay light blue eggs in a cup-shaped nest built in trees or shrubs.
House Finch
The House Finch, with its reddish plumage and cheerful song, is a common sight in North American urban and suburban areas. These birds build their nests in trees, shrubs, or even on buildings, laying pale blue eggs with fine speckles.
Snowy Egret
The Snowy Egret, a graceful white heron found in wetlands across the Americas, is known for its elegant plumage and yellow feet. These birds build their nests in colonies, laying pale blue bird eggs in a platform nest made of sticks.
Dunnock
The Dunnock, also known as the Hedge Sparrow, is a small, inconspicuous bird found across Europe and Asia. With its brown and gray plumage, it blends well into hedgerows and gardens. Dunnocks birds that lay blue eggs in a neat cup-shaped nest hidden in dense vegetation.
European Starling
The European Starling, introduced to North America, is known for its iridescent plumage and noisy flocks. These birds build their nests in cavities, laying glossy blue eggs. Starlings are highly adaptable and thrive in both urban and rural environments.
European Robin
The European Robin, with its iconic red breast, is a beloved bird found across Europe. Known for its melodious song, the robin builds a cup-shaped nest in dense shrubs or on building ledges, where it lays pale blue eggs.
Common Linnet
The Common Linnet, a small finch found across Europe and Asia, is known for its melodious song and streaked brown plumage. These birds build their nests in shrubs, laying pale blue eggs with fine speckles.
Little Blue Heron
The Little Blue Heron, found in wetlands across the southeastern United States and Central America, is known for its striking blue-gray plumage. These birds build their nests in colonies, laying pale blue eggs in platform nests made of sticks.
Gray Catbird
The Gray Catbird, known for its cat-like calls and mimicry, is found in dense shrubs and thickets across North America. With its slate-gray plumage and distinctive black cap, it builds a cup-shaped nest where it lays blue-green eggs.
Common Myna
The Common Myna, native to South Asia but now found in many parts of the world, is known for its bold behavior and loud calls. These birds build their nests in tree cavities or buildings, laying blue-green eggs.
Song Thrush
The Song Thrush, with its spotted breast and melodious song, is found across Europe and Asia. These birds build cup-shaped nests in trees or shrubs, laying bright blue eggs speckled with black.
Great Blue Heron
The Great Blue Heron, a large wading bird found across North America, is known for its majestic appearance and slow, deliberate movements. These birds build large platform nests in trees, laying pale blue eggs.
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FAQs about Birds that Lay Blue Eggs
Do blue eggs mean the chicks hatch faster?
No. Egg color does not directly affect hatching time. The blue color is caused by pigment deposits and varies by species.
Do blue eggs mean the eggs are healthier or stronger?
Not necessarily. Egg color mainly reflects pigments and genetics; any link to shell strength or the female’s condition varies by species and isn’t a universal rule.
Are blue bird eggs rare in nature?
Only a small fraction of bird species worldwide lay blue eggs, making them particularly striking and memorable.
Where are blue eggs usually found?
Often in cup nests in trees/shrubs, cavities, or nest boxes, depending on the species. Habitat and nest placement vary a lot.
What should I do if I find a blue egg or a nest?
Do not handle or move it. Observe from a distance and keep pets away. In many places, disturbing nests or eggs is illegal. Contact local wildlife authorities if the nest is in danger.
Summary
That's our answer of what birds lay blue eggs. Want to explore further? Why not try using the bird egg ID chart? It helps you compare birds with blue eggs based on color, size, and markings, allowing you to narrow down possible species more quickly and making birdwatching and identification more intuitive and fun.
