
Blue Jay
Kingdom: Animalia, Phylum: Chordata, Class: Aves, Order: Passeriformes, Family: Corvidae, Genus: Cyanocitta, Species: C. cristata
Family: Corvidae (Crows, Jays, and Magpies)
- Shape
- Relatively symmetrical, elongated, with a rounded to slightly tapered tip.
- Size
- Estimated 5.5 to 7.0 inches (14-18 cm) in length; width approximately 1 inch at widest point.
- Rarity
- Very Common; one of the most recognizable and widespread birds in Eastern North America.
Found a feather like this?
Identify any feather from a photo, free.
Description
A striking tail feather from a large songbird known for its bright blue plumage and crest. Blue Jays are vocal, intelligent birds that measure about 9-12 inches with a 13-17 inch wingspan. They are famous for their mimicry and bold behavior around bird feeders.
Colour & Pattern
Boldly patterned with alternating black bars (banding) over a blue to periwinkle ground color; the distal end features a prominent, clean white tip; ventral side is lighter and more matte.
Barb Structure
Mostly pennaceous and tightly interlocked; small plumulaceous section at the very base (the calamus/umbilicus).
Texture & Surface
Smooth, stiff, and slightly glossy on the dorsal surface; the blue is structural (not pigment-based) and appears vivid under direct light.
Key Features
Distinctive black horizontal barring on a blue background followed by a broad white terminal band; structural blue coloration that disappears in backlight.
Habitat
Deciduous and mixed forests, woodlots, residential gardens, and urban parks with mature trees.
Geographic Range
Eastern and central United States and southern Canada; year-round resident in most of its range, with some northern populations migrating south.
Ecological Role
Important seed dispersers (especially for oak acorns); also act as neighborhood 'sentinels' that alarm-call to warn other birds of predators like hawks.
Similar Species
Steller's Jay (lacks the broad white tips), Blue-and-white Mockingbird (different barring/blue tone), or other Corvids like Magpies (gradient rather than crisp bars).
Interesting Facts
The blue in this feather is a structural color caused by light scattering (Tyndall scattering) through the microscopic structure of the barbs; if you crush the feather, the blue disappears.
Condition Notes
Good condition; minor ruffling of the barbs near the base; no significant fault bars or parasitic damage visible.