Tom Koerner/USFWS • An adult Cooper’s hawk, such as this individual, is a crow-sized woodland raptor that breeds throughout much of the United States, southern Canada and northern Mexico.
Barbara Lake, a resident in Hampton, emailed me recently to share a sighting of a large hawk in her yard.
“This hawk was in our yard today and flew up to a tree when I opened the door,” she wrote. “(Its) back and the back of the head are black and the rest appears to be white. He didn’t cooperate by turning around.”
Barbara enclosed some photos with her email. I’ve known Barbara for about 20 years. We first met when she invited me to her home to view some nesting bluebirds on a television screen. She had placed nest cams in some of her bluebird nesting boxes, capturing real-time footage of the nesting activity of these songbirds.
I’ve enjoyed some observations of the region’s larger raptors, including red-tailed hawks and red-shouldered hawks, as winter has settled in for the long haul. I’ve also spotted a few American kestrels.
Based on the raptor’s relatively long tail in the photos provided by Barbara, I hazarded a guess that her visiting raptor was a Cooper’s hawk.
Anyone who travels along the region’s Interstate Highway System has probably noticed hawks perched in trees or on utility lines adjacent to the roadway. The section of Interstate 26 that runs between Unicoi and Johnson City is often a productive area for keeping alert for raptors. The raptor I have most often observed along this stretch of road is the red-tailed hawk, although I have also observed Cooper’s hawk, sharp-shinned hawk and American kestrel. In the time of spring and fall migration, it’s also possible to observe broad-winged hawks.
Photo by Bryan Stevens • Raptors, like this red-tailed hawk, are plentiful oin the region.
The red-tailed hawk is named for its prominent red tail. However, only adults show the characteristic red tail. The affinity red-tailed hawks demonstrate for roadsides is a double-edged sword. Viewing a large hawk from your car is an easy way to watch birds. For inexperienced or careless raptors, however, roadside living is often rife with the chance for a collision with a car or truck. The red-tailed hawk, which prefers open countryside, is attracted to the margins of roads and highways because these locations also attract their favorite prey, which includes rodents like rats, squirrels and mice and other small mammals such as rabbits.
Human behavior contributes to some of the problems that hawks encounter in the zone that brings them too close for comfort to motorized vehicles. When people toss trash from a car, the scent of the litter will lure curious and hungry rodents. In turn, hunting hawks are brought to the edges of roads in search of their preferred prey, increasing the likelihood of colliding with automobiles.
The Cooper’s hawk is a large accipiter hawk. A smaller relative, the sharp-shinned hawk, is also found in the region. The accipiter hawks are graceful and aerodynamic, designed to pursue prey through woodlands. Buteo hawks, such as the red-tailed hawk and red-shouldered hawk, are more of an ambush predator and not designed for the agile maneuvers that the accipiters can use to capture prey.
Some of the buteo species have adapted to life on islands, including the Galapagos hawk and the Hawaiian hawk. Some of these hawks have quite descriptive names, including the white-throated hawk, gray-lined hawk, zone-tailed hawk and short-tailed hawk. Outside the United States, raptors in the buteo genus are often known as “buzzards.” When the first European colonists came to the New World, they applied the term buzzard to types of native vultures as well as the large raptors like Swainson’s hawk and broad-winged hawk that reminded them of the ones back in Europe.
USFWS • An immature Cooper’s hawk perches on a branch in a tree located in the Klamath Basin National Wildlife Refuge Complex.
Accipiter hawks are also widespread. Accipiter is a genus of birds of prey in the family Accipitridae. With 49 recognized species, it is the most diverse genus in its family. Most species are called goshawks or sparrowhawks, although almost all New World species (excepting the Northern goshawk) are simply known as hawks.
Most accipiter hawks, including Cooper’s and sharp-shinned, prey mostly on other birds. The website All About Birds notes that small songbirds are usually safe around a Cooper’s hawk. Medium-sized birds, however, are not. Studies list European starlings, mourning doves and rock pigeons as common prey. Other birds that are often targeted by Cooper’s hawk include American robins, blue jay, Northern flicker, quail, grouse and pheasants. Cooper’s hawks sometimes rob nests and also eat chipmunks, rabbits, mice, squirrels and bats. According to All About Birds, mammals are more common in diets of Cooper’s hawks in the western United States.
Some of the more descriptively named accipiter hawks include crested goshawk, grey-bellied hawk, spot-tailed sparrowhawk, plain-brested hawk and little sparrowhawk.
All too often, our large hawks don’t receive the love they deserve from the public. They may even run afoul of misinformed individuals who may regard all predatory birds as “bad.” The reality is that all hawks are valuable components of a healthy, working ecosystem, with each species filling a certain niche.
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To share a sighting, ask a question or make a comment, email me at ahoodedwarbler@aol.com.
