14 Blue Birds in California (+Free Photo Guide)

The Western Bluebird is a charismatic bird, appreciated for its vivid coloring and melodious song, commonly observed in open woodlands and meadows of the West.

Appearance: The male Western Bluebird sports a dark blue head, throat, wings, and tail with an orange breast and sides, transitioning into a grayish belly. Females are more muted, displaying grayish-blue wings and tail with a more subdued orange wash on the chest.

Diet: Western Bluebirds predominantly feed on insects, complemented by berries and fruits when available. They hunt by perching and then diving to the ground to capture their prey, and they’re also known to catch insects in mid-air.

Reproduction: These birds often utilize natural tree cavities or nest boxes for breeding. The female builds a loose nest inside and lays a clutch of 4-6 pale blue eggs.

The Mountain Bluebird is a small bird found in open grasslands and rocky mountains of North America. It is known for its stunning blue plumage, which is particularly vibrant in males. Females, on the other hand, have a more subdued blue coloration with hints of gray. These birds have slender bodies and a slightly curved bill, adapted for catching insects on the wing.

Mountain Bluebirds are insectivores, feeding primarily on insects such as beetles, grasshoppers, and spiders. They are skilled aerial hunters, capable of capturing their prey in mid-flight. During breeding season, these birds build their nests in tree cavities or man-made nest boxes, where females lay a clutch of eggs. The male bluebird actively participates in nest-building and provides food for the female during incubation.

The California Scrub-Jay is a vivacious bird known for its intelligence and striking appearance, predominantly found in the chaparral, oak woodlands, and residential areas of California and parts of the Pacific Northwest.

Appearance: This jay boasts a vivid blue head, wings, and tail, complemented by a pronounced white eyebrow, a white underbelly, and a soft gray back. A distinguishing feature is the blue necklace or band across its throat and chest, which differentiates it from some other jay species.

Diet: California Scrub-Jays are omnivorous. Their diet consists of insects, fruits, seeds, and nuts, with acorns being a particular favorite. They, like their Floridian counterparts, will also cache acorns and other foods in the ground to consume later.

Reproduction: The California Scrub-Jay forms monogamous pairs. The nests, usually built between 1 to 3 meters off the ground in trees or shrubs, are constructed using twigs and lined with finer materials like hair or plant fibers. The female lays a clutch of 3 to 6 eggs that are greenish or bluish and speckled with brown.

The Steller’s Jay is a charismatic and easily recognizable bird found mainly in the coniferous forests of the western North America, known for its bold behavior and loud, varied calls.

Appearance: The Steller’s Jay has a striking color contrast with a deep blue body and wings and a blackish head and upper body. One of its most distinguishing features is the tall, dark crest on its head, which can be raised or lowered depending on the bird’s mood. Its eyes are dark and its beak is strong and black.

Diet: The Steller’s Jay is omnivorous. It feeds on a wide range of items, from seeds, nuts, and berries to insects and small animals. It’s also known to raid campsites and picnics, often scavenging for human food.

Reproduction: Steller’s Jays form monogamous pairs that often remain together for several years. They typically build their nests in coniferous trees, made from twigs, moss, and other plant materials. The female lays a clutch of 2 to 6 eggs, which are usually pale green or blue with brown spots.

The Blue Grosbeak is a medium-sized songbird found in North and Central America. The male Blue Grosbeak displays stunning plumage with deep blue feathers on its body and head, while the female has more subdued brownish tones. Both sexes have a thick, conical bill, which gives them their name “grosbeak,” meaning large beak.

These birds prefer open habitats such as grasslands, brushy areas, and woodland edges. Blue Grosbeaks are known for their melodious songs, which consist of a series of rich and varied notes. They primarily feed on seeds and insects, using their strong beaks to crack open seeds and forage on the ground or in low vegetation.

The Lazuli Bunting is a vibrant songbird recognized for its brilliant colors and melodious song, frequently seen in brushy areas and woodlands during the summer months.

Appearance: The male boasts a dazzling bright blue head and back, offset by a white belly and rust-orange breast. Females and immature birds present a more muted brownish hue overall, with a hint of blue on the wings and tail.

Diet: Lazuli Buntings primarily feed on seeds, but during the breeding season, they’ll also consume insects. Their strong, conical beaks are perfectly adapted for seed-cracking.

Reproduction: The female Lazuli Bunting constructs a cup-shaped nest using grasses, twigs, and other fine materials, often placing it in a shrub or low tree. She typically lays a clutch of 3-4 pale blue or white eggs.

The Indigo Bunting is a strikingly vibrant songbird, often hailed for its brilliant blue plumage and melodic song that graces woodlands and meadows during the warmer months.

Appearance: Males are renowned for their bright indigo blue feathers, which can appear darker in certain lights. Females and juveniles, on the other hand, are brown with subtle hints of blue on their wings and tail. The species lacks the vibrant streaking or spotting commonly found in many other songbirds.

Diet: Indigo Buntings primarily subsist on seeds, especially during non-breeding seasons. During the breeding season, they also consume a variety of insects such as beetles, caterpillars, and spiders, providing essential protein for their growing chicks.

Reproduction: Indigo Buntings build their nests close to the ground in shrubs or low tree branches. These nests, crafted meticulously with grasses and other plant materials, cradle clutches of typically 3 to 4 eggs. After hatching, the young are fed by both parents until they’re ready to fledge.

The Barn Swallow is a sleek, agile bird renowned for its graceful flight patterns and iconic forked tail, often seen darting over fields and water bodies in search of flying insects.

Appearance: Barn Swallows have deep blue, almost iridescent, upperparts and a rufous to tawny underbelly. Their distinctively forked tail and long wings give them a streamlined look. Both males and females have a similar appearance, though males often exhibit slightly brighter colors and a deeper fork in the tail.

Diet: Barn Swallows feed primarily on flying insects, which they catch in mid-air during their agile and acrobatic flights. Their diet includes flies, beetles, moths, and other small flying insects.

Reproduction: Barn Swallows are known for building their mud nests on man-made structures, particularly barns, bridges, and eaves. The nest is cup-shaped and made from mud pellets, often lined with feathers. The female lays a clutch of 4 to 6 eggs.

The Tree Swallow is a graceful and agile bird, best recognized for its iridescent blue-green upperparts and sweeping flight patterns over open fields and water.

Appearance: The Tree Swallow is sleek with a streamlined body. The upperparts shine with a blue-green iridescence while the underparts are white. They possess long, pointed wings and a slightly forked tail, aiding in their agile flight.

Diet: Tree Swallows primarily feed on flying insects, skillfully catching them mid-air. During colder months when insects are scarce, they can switch to a diet of berries, particularly those of the bayberry, which other birds might find hard to digest.

Reproduction: Tree Swallows are cavity-nesters, typically choosing natural holes in trees or using bird boxes. They line their nests with feathers, creating a soft environment for the eggs. The female will lay a clutch of 4 to 7 white eggs.

The Belted Kingfisher is a distinctive and easily recognizable bird, frequently observed near water bodies, where it can be seen diving headfirst to catch prey.

Appearance: Sporting a prominent crest, the Belted Kingfisher has a slate blue-gray upper body and white underparts. Males possess a single blue band across their white chests, while females have an additional rufous band, making them one of the few bird species where females are more brightly colored than males. Their bill is long, sharp, and dagger-like.

Diet: As expert fishers, Belted Kingfishers mainly prey on small fish, but they’ll also consume crustaceans, insects, and amphibians. They’re known for their hunting tactic of hovering over water, spotting their prey, and then diving swiftly to snatch it.

Reproduction: Belted Kingfishers nest in burrows which they excavate in sandy or earthen banks, usually adjacent to water. The tunnel can be anywhere from 3 to 6 feet long, ending in a chamber. Within this chamber, the female lays a clutch of 5 to 8 white eggs.

The Little Blue Heron is a slender and elegant wading bird, often seen foraging in freshwater or saltwater habitats, especially in the southeastern parts of the United States.

Appearance: This heron undergoes a fascinating color transition as it matures. Juvenile Little Blue Herons are white, but they gradually acquire the slate-blue plumage that characterizes adults. The adult has a dark blue-gray body with a purplish neck and head. Their bill is grayish with a black tip.

Diet: The diet of the Little Blue Heron consists mainly of small fish, but they also feed on crustaceans, insects, and other small aquatic animals. Using stealth, they slowly stalk their prey in shallow waters before striking with their long, sharp bill.

Reproduction: Little Blue Herons nest in colonies, often with other wading birds. They build platform nests in trees or shrubs close to water bodies. The female typically lays a clutch of 3 to 5 pale blue eggs. Both parents participate in incubation and feeding the chicks once they hatch.