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Cooper's Hawk (also known as Big Blue Darter, Chicken Hawk)
Tail feather (rectrix), specifically a central or near-central rectrix

Cooper's Hawk (also known as Big Blue Darter, Chicken Hawk)

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

Family: Accipitridae (Hawks, Eagles, Kites, and Old World Vultures)

Shape
Symmetrical vane with a rounded tip, broad and slightly tapered outline characteristic of a medium-sized raptor tail feather
Size
Approximately 8 to 10 inches long, consistent with a tail feather of an adult Cooper's Hawk
Rarity
Common and widespread throughout its natural range
Learn more about Cooper's Hawk (also known as Big Blue Darter, Chicken Hawk) in the encyclopedia →

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Description

A medium-sized forest hawk with broad, rounded wings and a long, rounded tail. Adults feature dark slate-gray upperparts and distinctive rufous-and-white barred underparts. Known for its incredible agility and high-speed navigation through dense forest canopies while hunting birds and small mammals.

Colour & Pattern

Pale bluish-gray or silvery-gray background crossed by several bold, dark charcoal-black transverse bands (bars) with a distinct white tip

Barb Structure

Tightly interlocked pennaceous barbs forming a smooth, firm vane with strong barbicels, and some plumulaceous fluff at the extreme base near the calamus

Texture & Surface

Stiff, smooth, and matte with a firm rigidity providing aerodynamic stability during flight and sharp turns

Key Features

Bold dark and light gray alternating bands with a distinct white terminal tip, characteristic of adult Cooper's Hawk tail feathers

Habitat

Deciduous and mixed forests, open woodlands, wooded suburbs, forest edges, and river groves

Geographic Range

Year-round resident across most of the United States, southern Canada, and parts of Mexico, with northern populations wintering further south

Ecological Role

Apex avian predator that helps regulate populations of songbirds, doves, and small mammals, serving as an important indicator of forest ecosystem health

Similar Species

Sharp-shinned Hawk and Northern Goshawk; Sharp-shinned tail feathers are smaller with square-tipped ends, while Goshawk tail feathers are significantly larger

Interesting Facts

Cooper's Hawks are master acrobats, capable of high-speed pursuits through thick brush, sometimes sustaining impact forces by using their long tails as rudders and brakes

Condition Notes

Good condition with intact barbs and only minor fraying at the base, showing normal wear for a naturally molted feather

Cooper's Hawk (also known as Big Blue Darter, Chicken Hawk) | Feather Identifier