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Blue Jay (Common Blue Jay)
Contour body feather

Blue Jay (Common Blue Jay)

Kingdom: Animalia, Phylum: Chordata, Class: Aves, Order: Passeriformes, Family: Corvidae, Genus: Cyanocitta, Species: C. cristata

Family: Corvidae (Crows and Jays)

Shape
Symmetrical vane with a rounded tip, broad overall outline.
Size
Approximately 3.5 inches long, consistent with a large body or covert feather for this species.
Rarity
Very Common
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Description

The Blue Jay is a striking and intelligent bird known for its loud calls, vibrant blue, white, and black plumage, and prominent crest. Measuring about 9-12 inches long, they are highly adaptable and often interact closely with human environments.

Colour & Pattern

Displays a vibrant blue tint on the distal portion with dark barring and a whitish-grey base. Melanin and structural coloration combine to create the characteristic blue hue.

Barb Structure

Pennaceous structure on the upper visible portion with tightly interlocked barbicels, transitioning to a slightly plumulaceous or fluffy base. Intact and generally well-preserved condition.

Texture & Surface

Smooth, slightly glossy appearance on the blue pennaceous section, transitioning to a soft, matte texture at the fluffy base.

Key Features

Vibrant blue coloration with distinct dark black or charcoal barring, a rounded tip, and a contrasting whitish-grey base.

Habitat

Deciduous and mixed forests, particularly areas with oak trees, as well as suburban parks, gardens, and residential areas.

Geographic Range

Resident and migratory across eastern and central North America, extending from southern Canada down through the eastern United States to Texas and Florida.

Ecological Role

Acts as an important seed disperser, particularly for oak trees and acorns, playing a crucial role in forest regeneration.

Similar Species

Steller's Jay (Cyanocitta stelleri), which features a darker, deeper blue and a much more prominent black crest, though their ranges overlap in limited central regions.

Interesting Facts

Blue Jays are known to practice aning, where they rub ants on their feathers to absorb formic acid. Their blue color is not derived from pigment, but is a result of light scattering caused by the internal structure of the feather barbs.

Condition Notes

Good condition with minor wear at the edges but overall intact barbs and a strong rachis.

Notes

Blue tint