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Cooper's Hawk
Secondary Flight Feather (Remex)

Cooper's Hawk

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

Family: Accipitridae (Hawks, Eagles, and Kites)

Shape
Broadly rounded tip with a slightly asymmetrical vane tapering toward the base
Size
Approximately 18-22 cm (7-9 inches) in length, consistent with an adult Cooper's Hawk secondary
Rarity
Common; widely distributed and adaptable to human-altered landscapes
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Description

This feather belongs to the Cooper's Hawk, a medium-sized forest raptor known for its incredible agility. Adult Cooper's Hawks have blue-gray backs and rufous-barred underparts. They are famous for their 'flap-flap-glide' flight style and their ability to hunt smaller birds through dense vegetation

Colour & Pattern

Alternating broad bands of dark slate-gray or brownish-gray and crisp white or pale gray. The bands are relatively even in width, a classic 'zebra' pattern typical of accipiters

Barb Structure

Tightly interlocked pennaceous barbs throughout most of the vane for steady flight; plumulaceous (downy) structure at the very base near the calamus

Texture & Surface

Smooth, firm, and slightly glossy on the dorsal surface; the vane is stiff to support air pressure during flapping flight

Key Features

Bold, even horizontal banding and a rounded tip. The width of the dark bands is roughly equal to the light bands, which helps distinguish it from the Sharp-shinned Hawk

Habitat

Mixed deciduous forests, woodlands, and increasingly common in suburban areas with mature trees and bird feeders

Geographic Range

Southern Canada through the contiguous United States to Central America; northern populations are migratory while southern ones remain resident

Ecological Role

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

Similar Species

Sharp-shinned Hawk (smaller, thinner bands), Northern Goshawk (larger, more mottled/marbled gray pattern), Red-shouldered Hawk (different banding spacing)

Interesting Facts

Cooper's Hawks are named after naturalist William Cooper. They are 'accipiters' or bird-hawks, possessing short rounded wings and long tails that act as rudders for high-speed maneuvers through trees

Condition Notes

The feather appears to be in Good condition with minor wear at the tip and some separation of the barbs near the base (barbicels are slightly unhooked)