
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.