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Cooper's Hawk
Secondary flight feather (remex), likely from the mid-wing section.

Cooper's Hawk

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

Family: Accipitridae (Hawks, Eagles, and Kites)

Shape
Relatively asymmetrical vane with a broad, rounded tip; slightly curved along the rachis. The trailing edge is wider than the leading edge, typical of secondary feathers.
Size
Approximately 15-18 cm (6-7 inches) in length. This is consistent with the secondary feathers of an adult or sub-adult Cooper's Hawk.
Rarity
Common; widely distributed and frequently encountered in both rural and urban suburban environments.
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Description

This feather belongs to a medium-sized raptor known for its agility. Cooper's Hawks have long tails and rounded wings. Adults have blue-grey backs and reddish-barred underparts, while juveniles are brown with vertical streaks.

Colour & Pattern

Distinctive bold banding with dark brown to charcoal-grey bars alternating with lighter greyish-white bars. The tip is dark, and the underside is noticeably paler with muted versions of the same bands.

Barb Structure

Mostly pennaceous and tightly interlocked for flight efficiency, with a small plumulaceous (downy) section at the base of the feather near the calamus.

Texture & Surface

Smooth, stiff, and somewhat matte. The surface is designed for silent but powerful flight through wooded environments.

Key Features

Even, thick dark banding; rounded tip; size ratio characteristic of the genus Accipiter; pale bases to the dark bands.

Habitat

Found in various wooded habitats, including deciduous, mixed, and coniferous forests, as well as leafy suburbs, parks, and backyard gardens.

Geographic Range

Common across North America, ranging from Southern Canada through the United States to Central Mexico. Northern populations are migratory.

Ecological Role

Apex avian predator in many environments; helps regulate populations of smaller birds and mammals.

Similar Species

Sharp-shinned Hawk (smaller feathers, thinner bands) and Red-shouldered Hawk (bolder, higher-contrast white and black banding).

Interesting Facts

Cooper's Hawks are 'true hawks' or bird-hawks, specializing in hunting other birds in flight. They are famous for their high-speed maneuvers through dense tree canopies.

Condition Notes

Good condition; minor fraying at the tip and along the edges suggests it was a naturally molted feather rather than one lost to predation.

Cooper's Hawk | Feather Identifier