Blue Jay

Kingdom: Animalia, Phylum: Chordata, Class: Aves, Order: Passeriformes, Family: Corvidae, Genus: Cyanocitta, Species: C. cristata · Corvidae (Crows, Jays, and Magpies) · Tail feather (Rectrix)

Blue Jay

Species

Cyanocitta cristata

Feather Type

Tail feather (Rectrix)

Family

Corvidae (Crows, Jays, and Magpies)

Shape

Slightly asymmetrical, elongated, with a rounded tip and a straight to slightly curved rachis.

Size

Approximately 5 to 6 inches (13-15 cm) in length; consistent with the central or outer rectrices of an adult Blue Jay.

Rarity

Very Common

Color & Pattern

Bright cerulean to royal blue base color with distinct, horizontal black bars (banding). The distal tip features a prominent white band. The color is structural (light scattering), not pigment-based.

Barb Structure

Pennaceous and tightly interlocked throughout most of the vane; plumulaceous (downy) at the very base near the calamus.

Texture & Surface

Smooth, stiff, and slightly glossy. The blue areas may appear to change intensity depending on the angle of light due to structural coloration.

Description

A striking feather from a medium-sized songbird known for its bold blue, white, and black plumage. Blue Jays are vocal, intelligent corvids with a prominent crest and complex social structures.

Key Features

Electric blue ground color, bold black transverse bars, and a crisp white terminal tip.

Habitat

Found in various habitats including deciduous, coniferous, and mixed forests, as well as suburban parks and residential gardens with mature trees.

Geographic Range

Resident throughout the eastern and central United States and southern Canada; northern populations may migrate south during harsh winters.

Condition Notes

Good condition; the vane is largely intact with minimal fraying at the edges, suggesting it was recently molted or lost.

Interesting Facts

The blue in this feather isn't actually blue pigment; it is caused by light interference through the internal structure of the feathers. If you crush the feather, the blue color disappears.

Ecological Role

Blue Jays are significant seed dispersers, particularly of acorns. They act as 'sentinels,' alerting other birds to the presence of predators like hawks or owls.

Similar Species

Steller's Jay feathers are darker blue/black and lack the white tips. Florida Scrub-Jay feathers lack the black barring.

Identified on 5/26/2026