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

The Cooper's Hawk is a medium-sized, highly agile forest-dwelling hawk known for its stealthy hunting style and incredible maneuverability through dense trees. Adults feature steel-gray upperparts, reddish-barred underparts, and a distinctively rounded, long banded tail. Females are noticeably larger than males, a classic case of reverse sexual size dimorphism in raptors.

Striking pattern of alternating dark charcoal-gray or blackish bands and lighter gray-blue bars, terminating in a broad dark subterminal band and a narrow white tip. The ventral side is slightly paler. The rachis is white near the base and transitions to dark gray distally.

Pennaceous vane with tightly interlocked barbs and barbules featuring hamuli (hooklets) for aerodynamic efficiency. Fluffy plumulaceous down is present at the extreme base. The barbs are intact and well-maintained.

Central rachis is robust, stiff, and gently curved, white at the proximal end transitioning to dark gray-brown along the shaft. Barbs are tightly packed and arranged at a consistent angle, creating strong, uniform vanes.

Smooth, firm, and stiff with a matte finish. Designed to withstand high friction and air resistance during agile flight maneuvers through dense forest canopy.

Tail (rectrix). Determined by the stiff, durable structure, blunt-rounded tip, and distinct alternating dark and light horizontal banding pattern typical of raptor tail plumage.

Distinctive bold dark and light gray transverse banding across the vanes, a rounded tip, and a prominent dark subterminal band followed by a narrow pale or white tip characteristic of Accipiter tail feathers.

Deciduous, mixed, and coniferous forests, wooded swamps, river groves, open woodlands, as well as suburban neighborhoods, parks, and golf courses where songbirds and doves are abundant.

Year-round resident throughout most of the United States and southern Canada, extending south into Mexico. Northern populations migrate to Central America for the winter.

Apex avian predator in woodland and suburban ecosystems. By preying primarily on medium-sized birds and small mammals, Cooper's Hawks help regulate prey populations and maintain the health and vigor of songbird populations.

Sharp-shinned Hawk (Accipiter striatus) and Northern Goshawk (Accipiter gentilis). Sharp-shinned hawk tail feathers are noticeably smaller (usually under 6 inches) and often have a more squared-off tip. Northern Goshawk tail feathers are larger and feature a heavier, more mottled gray pattern.

Cooper's Hawks are master aviators capable of high-speed pursuits through dense timber. They routinely navigate tight spaces by folding their wings and banking sharply, sometimes even flying through narrow gaps at speeds exceeding 30 miles per hour.

Historically, Cooper's Hawks and similar accipiters were prized by falconers for hunting small game and birds. Indigenous cultures revered hawks for their keen vision, speed, and hunting prowess, often incorporating their feathers into regalia and ceremonial artifacts.

Look for molted feathers under known roost trees, pluck-posts, or near active nests during late spring and summer. Compare size and banding width against regional raptor guides to differentiate from kestrels, merlins, and larger falcons.

Excellent condition. The feather appears fresh, with intact barbs, no noticeable fraying, fading, or fault bars, indicating it was likely molted naturally during the summer months.