
Cooper's Hawk (also known as Big Blue Darter, Chicken Hawk, or Hen 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 and an overall oblong to broad oval outline.
- Size
- Approximately 3 to 4 inches long, consistent with a medium-sized body or covert feather from an Accipiter hawk.
- Rarity
- Common (regularly encountered, though often secretive)
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Description
Cooper's Hawks are medium-sized forest hawks renowned for their incredible agility in high-speed flight through dense trees. Adults feature steel-blue-gray backs and wings with distinctive reddish-orange barring on the underparts and a barred tail. Their piercing red eyes and rounded tails are classic field marks.
Colour & Pattern
Pale greyish-white background featuring distinctive horizontal dark grey or brownish-grey barred transverse bands across the upper vane.
Barb Structure
Pennaceous at the distal tip with tightly interlocked barbs, transitioning to plumulaceous (fluffy, downy) barbs near the base where a small afterfeather is visible.
Texture & Surface
Smooth and firm at the pennaceous tip, transitioning to soft and downy at the base with a matte surface finish.
Key Features
Distinctive dark horizontal barring against a pale greyish-white background, rounded tip, and a fluffy plumulaceous base.
Habitat
Deciduous and mixed forests, wooded tracts, river groves, open woodlands, and increasingly suburban neighborhoods and parks.
Geographic Range
Widely distributed throughout North America, ranging from southern Canada down through the United States and into Mexico.
Ecological Role
Apex avian predators that help regulate populations of medium-sized birds and small mammals, serving as key indicators of woodland ecosystem health.
Similar Species
Sharp-shinned Hawk (Accipiter striatus), whose feathers are very similar but typically smaller and from a smaller bird; Northern Goshawk, which is larger and heavier.
Interesting Facts
Cooper's Hawks are specialized bird hunters, capable of making high-speed aerial pursuits through thick branches. Females are notably larger than males, a trait known as reverse sexual size dimorphism.
Condition Notes
Good condition with minor wear along some barb edges near the middle vane, but overall intact with no major breaks.