
Blue Jay
Kingdom: Animalia, Phylum: Chordata, Class: Aves, Order: Passeriformes, Family: Corvidae, Genus: Cyanocitta, Species: Cyanocitta cristata
Family: Corvidae (Crows, Jays, and Magpies)
- Shape
- Slightly asymmetrical, spatulate/rounded tip, broad and small
- Size
- Approximately 1.5 to 2.5 inches (4-6 cm) in length; consistent with secondary wing coverts of the species.
- Rarity
- Very Common; one of the most frequently found blue-colored feathers in North America.
Found a feather like this?
Identify any feather from a photo, free.
Description
This feather belongs to the Blue Jay, a medium-sized songbird known for its bold personality and bright plumage. The bird features a prominent crest, white underside, and various shades of blue and black on its wings and tail. It is highly vocal and intelligent.
Colour & Pattern
Striking cerulean to cobalt blue base with distinct thin black horizontal bars (banding). The blue is structural (not pigment), caused by light scattering. The reverse side is dull gray.
Barb Structure
Upper half is pennaceous and tightly interlocked; lower half near the superior umbilicus is plumulaceous (downy) and loose.
Texture & Surface
Smooth and slightly waxy on the pennaceous vane; soft and fuzzy at the base. The blue surface has a subtle satin luster.
Key Features
Alternating black bars on a bright blue background; small size and rounded shape; gray downy base.
Habitat
Deciduous, coniferous, and mixed forests; very common in residential suburban areas, parks, and gardens.
Geographic Range
Native to eastern and central North America; found year-round from southern Canada to Florida and west to the Rocky Mountains.
Ecological Role
Omnivorous sentinel; they warn other birds of predators. They are important seed dispersers, especially for oak trees (acorns).
Similar Species
Steller's Jay (darker blue, often lacks distinct banding), Bluebird (usually solid blue without black bars), Belted Kingfisher (different shade and shape).
Interesting Facts
The blue in this feather isn't actually blue pigment; if you crush the feather, it would turn brown. The color is 'structural,' created by the way light interacts with microscopic cells in the barbs.
Condition Notes
Excellent; barbs appear intact with no significant wear or fault bars. Likely a naturally molted feather.