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Here, although the food niche breadth (mean number of prey species per study site) of Cooper's was relatively low at 1.79, Cooper's hawk had the largest mean prey sizes at 67.4 g (2.38 oz), which was considerably higher than even the much larger red-tailed hawk (mean prey mass of 43.4 g (1.53 oz)).
Domestic cats and dogs are the greatest threat to attack the falcon on the ground, but the Cooper's hawk is well known to boldly attack kestrels. This mid-sized American accipiter has sufficient size and strength to carry the kestrel away, though falconers have reported often being successful in recovering the kestrel unharmed by acting quickly ...
Left to right: Cooper's hawk, sharp-shinned hawk, and the red-tailed hawk (not to scale). In the United States, chickenhawk or chicken hawk is an unofficial designation for three species of North American hawks in the family Accipitridae: Cooper's hawk (also called a quail hawk), the sharp-shinned hawk, and the Buteo species red-tailed hawk.
This is a comprehensive listing of all the bird species recorded in Big Bend National Park, which is in the U.S. state of Texas.Unless otherwise noted, this list is based on one published by the National Park Service (NPS) as of July 2024.
Sharp-shinned hawk: F U F F Cooper's hawk: F U F F Red-shouldered hawk: U U F F Red-tailed hawk: C F C C Ferruginous hawk - - - U Golden eagle: U U U U American kestrel: U U F F Merlin - - U U Peregrine falcon: U - U U Wild turkey: U U U U California quail: C C C C Virginia rail: U U F F Sora: U - F F Common gallinule - - - U American coot: C F ...
Peregrine falcons are well-known as birds of prey that can fly extremely fast and travel long distances. Peregrines have been timed in stoops, or steep dives, at speeds of 200 miles per hour ...
Unlike some birds, but similar to other diurnal raptors, most hawk species are violet-sensitive but cannot perceive ultraviolet light. [11] Hawks also have relatively high visual acuity – the distance at which they can resolve an image – with red-tailed hawks reported to have 16.8 cycles per degree. [12]
It was a hawk that was making swift strafing runs at the turkey brood. What would the mother hen do? A flash of motion caught my attention. It was a hawk that was making swift strafing runs at the ...