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Cooper's Hawk (also known as Big Blue Darter, Chicken Hawk)
Body contour feather (likely from the upper breast or flank)

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 gently rounded tip and an elongated, tapering overall outline
Size
Approximately 2.5 to 3 inches long, consistent with a medium-sized raptor contour feather
Rarity
Common and widespread throughout its natural range, though individual sightings require patient observation
Learn more about Cooper's Hawk (also known as Big Blue Darter, Chicken Hawk) in the encyclopedia →

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Description

The Cooper's Hawk is a medium-sized stealth predator specialized in navigating dense woodlands at high speeds. Adults feature slate-gray upperparts, striking reddish-orange horizontal barring on the underparts, and a distinctively long, rounded tail with dark bands. Known for their agility, they pursue songbirds and small mammals through dense brush with remarkable maneuverability.

Colour & Pattern

Warm rufous-brown or brownish-gray barring against a lighter pale gray or whitish background, featuring clean transverse bars characteristic of an adult Cooper's Hawk

Barb Structure

Pennaceous upper portion with tightly interlocked barbs and barbicels, transitioning into a slightly plumulaceous (fluffy) base with a small, inconspicuous afterfeather

Texture & Surface

Smooth, firm, and matte in appearance, with a silky feel near the base and a resilient, water-resistant upper vane

Key Features

Clean, warm rufous-brown transverse barring on a pale background, combined with a moderately rounded tip and a pale flexible rachis typical of medium-sized accipiters

Habitat

Deciduous and mixed forests, open woodlands, wooded patches, riparian areas, and increasingly in suburban neighborhoods and urban parks

Geographic Range

Widely distributed throughout North America, ranging from southern Canada down through the United States and into Mexico, with populations in South Florida being year-round residents

Ecological Role

Apex avian predator that helps regulate populations of medium-sized birds and small mammals, serving as a key indicator of woodland ecosystem health

Similar Species

Sharp-shinned Hawk (Accipiter striatus) and Northern Goshawk (Accipiter gentilis). Sharp-shinned hawk feathers are generally smaller and often show squared-off tail tips or slightly different barring, while Goshawk feathers are considerably larger and bulkier

Interesting Facts

Cooper's Hawks are acrobatic fliers capable of high-speed pursuits through dense timber. Females are notably larger than males (a trait known as reverse sexual size dimorphism), sometimes weighing up to a third more than their male counterparts

Condition Notes

Good condition with intact barbs and minimal wear, showing slight natural fading near the tip but no major structural damage or fault bars

Notes

South Florida