
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
AI-generated identification · may be incorrectFamily: 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
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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
Rachis & Barb Pattern
Central rachis is moderately thin, whitish-gray, slightly curved, and rigid yet flexible, with evenly spaced, dense barbs angled uniformly outward
Texture & Surface
Smooth, firm, and matte in appearance, with a silky feel near the base and a resilient, water-resistant upper vane
Feather Placement
Breast or flank covert, determined by its soft yet structured vane, rounded tip, and subtle barring characteristic of ventral raptor plumage
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
Cultural Significance
Historically perceived as a threat to poultry (earning the colloquial name 'chicken hawk'), these birds are now protected and valued for their role in controlling pest bird populations. Indigenous cultures have sometimes incorporated hawk feathers into regalia
Field Identification Tips
Look for molted raptor feathers beneath known roosting trees, old squirrel nests, or woodland edges where raptors frequently pluck prey during breeding season
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