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Blue Jay
Tail feather (Rectrix)

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, elongated with a rounded tip
Size
Approximately 5 to 6 inches (12-15 cm) in length, which is standard for an outer or central rectrix of an adult Blue Jay.
Rarity
Very Common; Blue Jays are abundant and widely distributed across their range.
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Description

This feather belongs to the Blue Jay, a medium-sized songbird known for its bold personality and striking plumage. The bird features a prominent crest, a black 'necklace,' and complex blue, white, and black patterns on its wings and tail.

Colour & Pattern

Brilliant cerulean to sky blue ground color on the dorsal surface with distinct, evenly spaced black horizontal bars. The tip features a broad, stark white terminal band. The ventral (underside) is a duller, silvery-grey.

Barb Structure

Mostly pennaceous and tightly interlocked; plumulaceous (downy) structure is visible near the base of the quill.

Texture & Surface

Smooth and glossy on the blue sections; the white tip is slightly softer. The overall vane is stiff and resilient typical of flight-enabling feathers.

Key Features

Electric blue coloration, bold black horizontal barring, and a distinct white terminal tip.

Habitat

Found in a variety of habitats including deciduous, coniferous, and mixed forests, as well as residential areas, parks, and gardens.

Geographic Range

Native to North America, spanning from southern Canada across the eastern and central United States to the Gulf Coast.

Ecological Role

Blue Jays are vital for forest regeneration as they cache acorns and seeds, many of which are never retrieved and grow into new trees. They also act as 'sentinels,' alerting other birds to the presence of predators.

Similar Species

Steller's Jay (lacks the white tips and has darker barring), Florida Scrub-Jay (lacks the horizontal black bars and white tips).

Interesting Facts

The blue in a Blue Jay's feather isn't caused by blue pigment but by structural coloration. The barbs contain tiny air pockets that scatter light, reflecting only the blue wavelength.

Condition Notes

Good; the vanes are largely intact, though there is some minor fraying and separation at the white tip, suggesting it may have been molted naturally at the end of the breeding season.

Blue Jay | Feather Identifier