Category Archives: Jonesborough Herald and Tribune

Several different species of hawks make their home in region

Photo by Bryan Stevens • This captive red-shouldered hawk was rehabilitated after suffering an injury and now works in an educational program at Brookgreen Gardens in South Carolina to teach the public about raptors, other birds, and various types of wildlife.

In recent weeks, I’ve enjoyed some observations of the region’s larger raptors, including red-tailed hawks and red-shouldered hawks.

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.

The Red-tailed Hawk is named for its prominent red tail. However, only adults show the characteristic red tail. The affinity for Red-tailed Hawks 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.

Photo by Bryan Stevens • A calling red-shouldered hawk perched in a dead tree on Pawleys Island in South Carolina.

In recent days, I have also noticed a Red-shouldered Hawk lurking among the branches of the large weeping willow next to the fish pond. The Red-shoulder Hawk typically prefers wetland habitats and is less likely to haunt roadsides. According to a factsheet published by the New York State Department of Environmental Conservation, this raptor breeds in moist woodlands, riverine forests, the borders of swamps, open pine woods and similar habitats. Nesting almost always occurs near water, such as a swamp, river or pond.

The Red-shouldered Hawk produces a distinctive, piercing whistle that reminds me of the shrill call of a Killdeer. The visiting Red-shouldered Hawk has been silent so far, perhaps not wishing to draw attention. The few times the local crows have noticed the presence of any sort of raptor, they’ve flocked together to mob the unfortunate hawk. It’s also not the right time of year; during courtship and the subsequent nesting period, these hawks are vocal, but at other times of the year, they are rarely heard. It’s also possible to mistakenly think you have heard one of these large hawks. Blue Jays have apparently learned to imitate the “kee-yar” call of this hawk, often working a flawless rendition of the whistled notes of this large raptor.

In contrast to the related Red-tailed Hawk, the Red-shouldered Hawk soars less and prefers to perch hidden in the cover of trees. This hawk’s name comes from the reddish-brown shoulder patches in the bird’s wings. Adults show a tail marked with vivid bands of black and white that is quite distinctive. The Red-shouldered Hawk belongs to the same genus of raptors as its larger relative, the Red-tailed Hawk. The genus, buteo, includes about two dozen large raptors that are often the dominant avian predators in their respective habitats.

Early naturalist and artist John James Audubon painted this pair of red-shouldered hawk.

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 both 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.

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.

Region’s biggest woodpecker is surprisingly shy

Photo by Bryan Stevens • A Pileated Woodpecker pays a visit to a walnut tree.

I heard the raucous antics of the large woodpecker before I saw it. A large Pileated Woodpecker had landed in the upper branches of a wild cherry tree near the creek that runs past my home. From spring to summer, the leaves of the tree provide green shelter for a variety of songbirds. During the winter, the tree is a stark outline against the winter sky and offers no concealment — not that a bird as large as a Pileated Woodpecker — it’s the size of a crow — would find it easy to hide itself.

One thing’s certain. A sighting of a Pileated Woodpecker never fails to impress. This bird has a loud, raucous cackling call, which is often heard before the bird is observed. This woodpecker spends a good amount of its time low to the ground, so when one takes flight unexpectedly, often calling loudly as its powerful wing beats carry it away from an observer, the moment can be somewhat startling. These experiences of sudden and unexpected sightings of one of these woodpeckers is often accompanied by exclamations of surprise. Hence common names such as “wood-hen” and “Lord God Bird” have been adopted for these woodpeckers. Other names for the pileated have included carpenter bird, cock-of-the-woods and wood-hen.

Photo by Bryan Stevens • A Pileated Woodpecker pokes its head into a cavity excavated into a dying tree.

At one point, the Pileated Woodpecker was relegated to second place when it came to the size of native woodpeckers. The often inaccessible swampy woodlands and river bottoms of the American south were home to the former title holder, the Ivory-billed Woodpecker. With the unsettled status of the Ivory-billed Woodpecker — is it extinct or is it still lingering in an Arkansas swamp? — the Pileated Woodpecker is considered the largest woodpecker in the United States. If incontrovertible evidence of the existence of Ivory-billed Woodpeckers should emerge in the future, the Pileated Woodpecker would once again find itself overshadowed by this dramatically larger relative.

Photo by Bryan Stevens • A male Pileated Woodpecker climbs the trunk of a walnut tree.

Although the Pileated Woodpecker can reach a length of 19 inches, the bird weighs only about 11 ounces. Male and female look similar with a black and white body and a bright red crest on the head. In fact, the term “pileated” in the species’ name comes from from the Latin “pileatus,” meaning “capped.” Males show a red stripe — or mustache — on the cheek that is not present in females.

As mentioned earlier, the Pileated Woodpecker often can be found low to the ground, foraging on tree stumps and fallen logs, as well as in taller, living trees. The reason for this behavior rests with one of its favorite foods — the humble carpenter ant. The pileated is not the only woodpecker that supplements its diet with ants. For instance, the Northern Flicker is also fond of dining on these insects. Studies conducted on the dietary preferences of Pileated Woodpeckers have revealed that as much as 40 percent of the diet is made up of ants. Some pileated woodpeckers appear to have developed quite an addiction for ants with some individuals dining almost exclusively on ants. These woodpeckers also eat wild fruits and nuts, as well as other insects and their larvae. The Pileated Woodpecker will occasionally visit a feeder for suet or seeds, but I’ve not had much luck overcoming their instinctive wariness.

Pileated Woodpeckers — usually a mated pair — have been among my wild neighbors for years, but they are shy, retiring birds. Despite their bold appearance and capacity for making quite a racket, the Pileated Woodpecker usually otherwise goes out of its way not to attract attention to itself. Because of this, close-up observations of the largest of our woodpeckers are experiences to savor.

The bird’s enthusiastic ability to excavate cavities in rotten trees is a boon to other species of birds. Certain species of ducks as well as owls, bats, squirrels and other species of wildlife will often make use of cavities created by Pileated Woodpeckers for roosting locations or to raise their own young.

Worldwide, there are about 180 different woodpeckers, but the family is conspicuous in its absence from Australia, Madagascar and New Zealand. The Pileated Woodpecker ranges across the North American continent, with birds present in the forests across Canada and the eastern United States as well as certain areas along the Pacific coast.

Many of the world’s other woodpeckers have quite interesting common names, including Melancholy Woodpecker, Powerful Woodpecker, Speckle-breasted Woodpecker, Yellow-crowned Woodpecker, Crimson-bellied Woodpecker, White-naped Woodpecker, Crimson-backed Flameback and Pale-headed Woodpecker.

Photo by Bryan Stevens • A Pileated Woodpecker hitches its way along the trunk of a Live Oak laden with Spanish moss.