Blue Jay
Kingdom: Animalia, Phylum: Chordata, Class: Aves, Order: Passeriformes, Family: Corvidae, Genus: Cyanocitta, Species: Cyanocitta cristata
Family: Corvidae (Crows, Jays, and Magpies)
- Shape
- Elongated and slightly asymmetrical with a rounded tip; the inner vane is wider than the outer vane.
- Size
- Approximately 5 to 6 inches (12-15 cm) in length, which is the standard range for a central to outer rectrix of an adult Blue Jay.
- Rarity
- Common; a widespread and easily recognizable species throughout its range.
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Description
This is a signature tail feather of the Blue Jay, a bold and intelligent songbird. The bird itself is mid-sized with a prominent crest, white underside, and various shades of blue, black, and white on its wings and tail. They are known for their loud complex 'jay-jay' calls and their ability to mimic hawks.
Colour & Pattern
A vibrant sky-blue base with distinct, evenly spaced horizontal black bars (barring). The blue is a structural color (tyndall scattering) rather than pigment. The ventral side is duller and more grey-toned.
Barb Structure
Pennaceous and tightly interlocked throughout the distal majority; plumulaceous (downy) at the very base near the calamus. The barbs are mostly intact but show a minor gap in the lower mid-section.
Texture & Surface
Smooth and slightly glossy on the dorsal surface due to the structural blue coloration; the vane is stiff and relatively flexible, providing aerodynamic stability.
Key Features
Bright blue structural coloration combined with sharp, horizontal black barring and a dark rachis. There is no white tip visible on this specific feather, indicating it may be an inner rectrix (R2-R5).
Habitat
Deciduous, coniferous, and mixed forests; highly adaptable to residential areas, parks, and suburban gardens with mature trees.
Geographic Range
Native to North America, resident throughout the Eastern and Central United States and Southern Canada. Populations in the north may migrate south during winter.
Ecological Role
Omnivorous sentinel of the forest; they alert other birds to predators (mobbing behavior) and serve as significant seed dispersers for nut-bearing trees.
Similar Species
Steller's Jay (darker blue, often lacks such distinct barring on all tail feathers), Blue-headed Vireo (much smaller), or Belted Kingfisher (different blue tone and barring pattern).
Interesting Facts
The blue color is not a pigment; if you crush the feather, the blue disappears because the light-reflecting structure is destroyed. Blue Jays are known to hide nuts (caching) and are credited with spreading oak trees after the last ice age.
Condition Notes
Good condition. The feather shows a small 'clean-cut' break or gap in the vane which may be a minor fault bar or mechanical damage from handling/shedding. Minimal sun bleaching.