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Cooper's Hawk (Chicken Hawk)
Tail feather (rectrix)

Cooper's Hawk (Chicken Hawk)

Kingdom: Animalia; Phylum: Chordata; Class: Aves; Order: Accipitriformes; Family: Accipitridae; Genus: Accipiter; Species: Accipiter cooperii

Family: Accipitridae (Hawks, Eagles, and Kites)

Shape
Symmetrical to slightly asymmetrical, elongated with a rounded tip; typical of a median tail feather (rectrix).
Size
Estimated 15-18 cm (5.9-7.1 inches) in length; consistent with mid-range tail feathers for an adult Cooper's Hawk.
Rarity
Common; widely distributed and adaptable to human-altered landscapes.
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Description

This feather belongs to a Cooper's Hawk, a crow-sized woodland raptor known for its incredible agility. The bird features a blue-gray back and a crown that is darker than its nape, giving it a 'capped' appearance. Adults have reddish-barred breasts.

Colour & Pattern

Base color is a medium cool gray with three to four distinct, broad, dark brown to charcoal horizontal bands (bars). The tip shows a faint white terminal band, which is diagnostic for this species.

Barb Structure

Pennaceous and tightly interlocked throughout the mid and upper vane; plumulaceous (downy) at the very base (calamus area).

Texture & Surface

Smooth and firm texture with a slightly matte finish; the leading surface is aerodynamic and relatively stiff to support flight and steering.

Key Features

Distinct broad dark banding on a gray background and a notable white tip at the end of the feather (though slightly worn here).

Habitat

Found in various woodland habitats, ranging from deep forests to leafy suburban parks and backyards where songbirds are prevalent.

Geographic Range

Year-round resident throughout most of the contiguous United States and Mexico; northern populations migrate from Canada to the southern US for winter.

Ecological Role

Apex avian predator in woodland ecosystems; helps regulate populations of medium-sized birds like doves, starlings, and jays.

Similar Species

Sharp-shinned Hawk (Accipiter striatus) feathers are nearly identical but significantly smaller with a squared-off tail profile. Northern Goshawk feathers are much larger and more heavily mottled.

Interesting Facts

Cooper's Hawks are 'accipiters' or 'true hawks,' specializing in hunting birds mid-air. They were once heavily persecuted as 'chicken hawks' but have recovered remarkably.

Condition Notes

Fair to Good. Shows significant wear and fraying at the tip and along the margins, likely from impact or ground contact after molting.