Birds of Prey

American Kestrel

The American Kestrel, Falco sparverius, is our nation’s smallest falcon with a wingspan of no more than 24 inches. It is a common sight throughout the US including in Florida from the panhandle to the central part of the state. Kestrels are common winter visitors in southern Florida.
Look for American Kestrels in areas that are open with a few trees and low-growing vegetation. Kestrels adapt to human-created pastures and parks. Longleaf pine forests are perfect habitats for breeding.
An American Kestrel’s diet is made up of mostly insects such as grasshoppers, dragonflies, butterflies, and beetles. They will also eat small birds and rodents including lizards, frogs, mice, bats, and songbirds. Most often the Kestrel will swoop down from a perch to catch prey. When in open areas, the kestrel will fly over the area and catch the prey in flight. Kestrels generally hunt during the day.
Males search for places suitable for a nest. He will show the female a variety of options including cavities in a tree such as an old woodpecker hole, crevices in buildings, or human-provided nesting boxes. The female will choose the nest and lay 4-5 eggs. Both parents incubate the eggs for up to a month. The male provides most of the food until the young fledge when they are about 1 month old.
Although American Kestrels are currently abundant, there is still cause for concern. Clearing of land for development, cutting down the dead trees they rely on for nesting sites, and pesticides that destroy their food sources have caused their populations to decline by 1.39% each year between 1966 and 2017. (North American Breeding Bird Survey.) This puts them on track for a population decline of 50% by 2075.
Consider putting up a nest box for a pair of American Kestrels. Learn who is running for office in your city, county, and state. Ask what their platform is on environmental justice. Advocate for Florida’s wildlife including American Kestrels and their habitats before it’s too late. Because: Extinct is Forever.
Photo Credit: David Gale
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Peregrine Falcon

The Peregrine Falcon, Falco peregrinus, is one of the fastest birds in the world and may reach speeds up to 238 miles per hour when swooping down on prey. From hummingbirds to Sandhill cranes, birds are the major source of food for the Peregrine Falcon. Bats, other small mammals, and insects add variety to their diets. The falcon will perch high in a tree or soar high in the sky while looking for food. From 300-3000 feet, the falcon will begin its stoop, dive upon the bird, and in a blink of an eye, stun it by hitting it hard or grabbing the prey with its feet. The power behind the speed of the falcon’s flight allows it to strike a bird in the air and cause it to fall to the ground. A quick bite through the neck kills the bird. Rock pigeons are easy prey near cities while shorebirds and ducks are a favorite meal along Florida’s coasts.
Between 1950 and 1970, DDT poisoning caused the Peregrine Falcon to be declared an Endangered Species. The North American Breeding Bird Survey now considers the population to be stabilized.
Although Peregrine Falcons can be found on 6 continents, they are still an uncommon sight and in Florida can be seen on rare occasions during winter.
Fun Fact: Peregrine means wanderer. Northern breeders migrate from the Arctic tundra all the way to South America.
Photo Credit: David Gale
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Great Horned Owl

Great Horned Owl
The majestic Great Horned Owl, Bubo virginianus, is a delightful sight to behold. This bird of prey is common throughout Florida and can be found in forests, wetlands, yards, and cities. The piercing yellow eyes of the Great Horned Owl do not move in their sockets. The owl will swivel its neck more than 180 degrees in both directions to see its surroundings. You have most likely heard the owl’s unmistakable, hauntingly deep hooting voice.
Female Great Horned Owls lay 1 brood each year of 1-4 eggs in a nest in a tree. The nest is made of sticks and is usually one built by another species. The owls may line the nest with leaves, fur and feathers from their prey, or feathers plucked from their own chests. They may also nest on the ground, in the cavity of a tree, in abandoned human structures, or on a platform designed especially for them.
Great Horned Owls have talons that exert up to 28 pounds of force when used to sever the spines of captured prey. Meals consist of frogs, rats, squirrels, crows, doves, and more. They will snack on insects, scorpions, and reptiles. Great Horned Owls also prey on animals larger than themselves including other owls, Osprey, and falcons.
Great Horned Owls mate for life. The couple defends their territory together but they roost separately. Look for them diving for prey near dawn and dusk. You may also witness raptors, crows, or songbirds loudly calling them, pecking at them, and dive-bombing them with just cause. As long as Great Horned Owls occupy their territory, the other birds risk becoming their prey.
According to the North American Breeding Bird Survey, Great Horned Owl populations declined by 33% between 1966 and 2015 due to over-hunting. Today, it is illegal to hunt owls and their populations naturally fluctuate depending on the prey available.
Photo Credit: Paul Waller
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Snail Kite

Snail Kites can be found flying low over open freshwater and marshes in Central and Southern Florida before dropping down to snatch an apple snail with their talons. They will fly to a perch and use their unique-shaped bills to pry the snails from their shells. Look for Snail Kites roosting in flocks just before hunting and during nesting season.

Listed as endangered in Florida since 1967, Snail Kites (Rostrhamus sociabilis) depend on good quality water to survive. Urban development, sewage seepage, nutrient and pesticide run-off, and invasive plants have degraded much of Florida’s freshwater. Nearly 1/2 of the Everglades have been drained. Since a Snail Kite’s diet consists almost exclusively of apple snails that only live in freshwater areas, it is imperative that we protect the remaining wetlands.

Photo Credit: Andy Waldo

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Northern Crested Caracara

Caracaras are in the falcon family and are excellent hunters although they behave a lot like vultures. They are often seen eating carrion or scavaging around campsites. They tend to hunt small vulnerable animals that are injured but will also eat fruit.

These birds are commonly found in central and south America but have found a home at Kissimmee Prairie Preserve State Park. This populate is known as a relict population that was previously found in the vast oak savannas throughout Florida. As those areas were altered through human disturbance, Caracaras found a home at Florida’s largest true prairie.

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Merlin

Merlins, Falco columbarius, are stocky, strong falcons. This bird of prey was found wintering at Lake Apopka Wildlife Drive. Merlins have an average flight speed of 30 miles per hour.

Merlins spend their summers in northern North America where they breed in open areas near rivers and lakes. Some have taken over crow’s nests in residential areas.

Their favorite foods are a variety of small to medium-sized birds. They enjoy House Sparrows and Least Sandpipers. Watch for Merlins to mount a high-speed attack where they will catch a bird in midair. Merlins also dine on dragonflies, bats, rodents, reptiles, and nesting birds.

The Merlin population significantly declined in the 1960s from pesticides. With reduced pesticide use, their population has stabilized. Loss of habitat is also a concern but Merlins have adapted by taking up residence in human neighborhoods.

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Swallow-tailed Kite

Swallow-tailed Kites (Elanoides forficatus) arrive in Florida in early March. They begin their breeding rituals high in the sky. The mated pair will build a nest of sticks, Spanish moss, and lichen near the top of a tall tree. Here they will share the task of incubating 1-3 eggs for about a month.

After hatching, the mother Swallow-tailed Kite will stay at the nest with the young and feed them the food that the father brings for all of them. After a few weeks, both the male and female will leave the nest to bring food back to their hungry chicks. The little ones will begin exploring the tree at about 5 weeks and will make their first flight at 5-6 weeks.

These striking raptors are hard to miss with their black forked tails, and brilliant white heads contrast their ebony bodies. They are most often found gliding through the sky over forests near rivers or open pine forests near marshes and prairies.

When you see a Swallow-tailed Kite soaring through the sky, watch as they twist their tail and swoop near trees and over lower plants. They will often snatch an animal off of a branch or leaf without slowing down. Their favorite foods include lizards, snakes, birds, frogs, and dragonflies.

In early July, Swallow-tailed Kites will gather in large communal roosts. They are dependent on lowland forests to supply the nourishment and calories they need before embarking on their 5000-mile journey to the tropical forests of southern Brazil, where they will spend the winter.

Photo Credit: flying Andy Waldo
Photo Credit: close up, Don Faulkner / CC BY-SA (https://creativecommons.org/licenses/by-sa/2.0)

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Barred Owl

“Who cooks for you? Who cooks for you-all?” hoots the Barred Owl in a rich, soulful voice.

Barred Owls (Strix varia) are native to North America and can be found in low-lying swamps, dense forests, and most commonly, in deciduous or mixed woods. A suburban neighborhood can offer Barred Owls an ideal habitat when large trees are present, although the risk of being hit by a vehicle poses a danger. Pleistocene fossils of Barred Owls have been dug up in Florida, indicating these magnificent birds of prey have inhabited our state for at least 11,000 years.

Adult Barred Owls are 16–25 inches long and have a wingspan of 38–49 inches. They weigh 1.10 to 2.31 pounds. Their faces are pale with dark rings around the eyes, and they have yellow beaks. Their chests are barred horizontally, and their bellies are barred vertically. Barred Owls are the only species in the Eastern United States who have warm, dark brown eyes.

Prey consists mostly of small mammals; however, Barred Owls will also prey upon other small animals such as amphibians, reptiles, and birds. Hunts generally occur during dusk or dawn, although Barred Owls may be found hunting during the day when it’s raining or when raising young. Barred Owls have keen eyesight and will often perch on a branch while waiting for prey to appear. Using their night-vision, they will take flight and silently swoop in on their prey. Without any warning, they will snatch up the unsuspecting animal in their strong talons.

Perched close to each other when courting, both males and females will bow and bob their heads, raise their wings, and call out to each other. Barred Owl nests are often found high in a tree cavity, although they have been known to move into an abandoned nest created by hawks, crows, or squirrels. Clutches consist of 2 to 4 white-colored eggs. Eggs are brooded by the female, during which time the male brings the food. Owlets hatch in approximately 4 weeks and are ready to take flight in about 6 weeks.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Turkey Buzzard

Let’s talk about the Turkey Buzzard (Cathartes aura), nature’s sanitation engineer, and when joined by friends, the ultimate clean-up crew.

Turkey Buzzards are also known as Turkey Vultures. They have black or dark brown feathers, and their featherless heads and necks have pink skin. They are between 25 to 32 inches in length and weigh up to 6 pounds. They have a wingspan of 54 inches.

Turkey vultures use thermal currents to float on the warm air currents without flapping their wings, conserving energy. They will travel 30 to 50 miles on these currents in search of food. Their bills and feet are not designed to catch prey, and they prefer to eat fresh roadkill and other carrion.

The Turkey Buzzard has a keener sense of smell than other birds. They can smell the chemical breakdown of carrion from a mile away and will float and follow the aroma until they find it. Their bald, featherless heads make it safer for them to stick their heads deep into the carrion, and nothing will stick to the smooth skin.

As carrion eaters, many consider Turkey Buzzards spooky and harbingers of death. If you see one of these vultures circling above you, it doesn’t mean you are about to die. These Buzzards have a unique and ecological role because they prevent the spread of disease from rotting carrion by eating it.

Since they have weak legs and cannot carry food back to their young, they will gorge on a carcass and regurgitate to feed the young. They will also urinate on their legs and feet to cool off. Their urine kills any parasites and bacteria from walking and standing on the carcasses. When threatened, they will vomit to lighten their body weight to escape as a defense mechanism against predators.

Turkey vultures are highly social. They will fly in a small group and breed annually with the same mate. The vulture can be found in pastures, landfills, or anywhere they can find carrion. Eggs are laid on the ground in dense thickets, scrub areas, hollow logs, caves, or old buildings. The Turkey Buzzard lays between one to four clutches from March to July. Their eggs hatch in 35 to 40 days, and the nesting period is 55 to 90 days.

Vultures are a protected species, which means that interfering with them physically has legal repercussions.

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Burrowing Owl

Florida Burrowing Owls are small owls with long legs and short tails. The head is rounded and does not have ear tufts. They are between 7-9 inches tall with a 21-inch wingspan. Burrowing owls have brown back feathers with patches of white spots. As well as a white underside with brown bar-shaped spots. The body color pattern helps them blend in with the vegetation in their habitat and avoid predators. They also have large yellow eyes and a white chin. They make their burrows in sandy prairies and pastures with very little vegetation. Due to development, the majority of Florida’s Burrowing Owls have had to adapt to living in urban habitats such as golf courses, ball fields, residential lawns, and other expanses of cleared lands. They are a very social species. Families will live in close proximity to each other. They are the only species of owl in the world that nests underground. They will dig their own burrows, or occupy burrows, up to 8 feet in length, that have been dug out by a Gopher Tortoise. They are active more during the day than the night. The female lays 6-8 eggs and incubates them, while the father stands guard outside and collects cockroaches, lizards, insects, and rodents. The chicks take several weeks to learn to fly. Before that, they take short runs along the ground. The Florida Burrowing Owl is listed as threatened due to loss of habitation and harassment by humans and domesticated animals.

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Bald Eagle

The Bald Eagle, Haliaeetus leucocephalus, is more than the symbol of the United States. They are interesting enough to have an entire day dedicated to them. While Save the Eagles Day originated as a way to raise awareness about the then-endangered species, it now serves as a time to learn about the thriving animals. Here are five facts you may not know about eagles:

1. Females weigh more than their male counterparts. The males weigh between 7 and 10 pounds, and females can weigh up to 14 pounds.

2. Eagles can see as much as eight times further than humans, and their eyes are equipped with infection-fighting tears.

3. While the bald eagle population has steadily increased after a severe drop, most of the population’s fatalities remain human-related. Impacts with manmade structures, gunshots, and poisoning are the leading causes of death.

4. The Bald Eagle emits a surprisingly weak-sounding call. Usually, a series of high-pitched, whistling, or piping notes. The female may repeat a single, soft, high-pitched note that signals her readiness to copulate.

5. Eagles can dive up to 100 mph while hunting. When they’re flying casually, they go about 30 mph.

The bald eagle, the national bird of the United States, was once on the endangered species list, being on it from 1967 until 1995. It was then reclassified as being threatened. The Eagle was subsequently removed from that list in 2007 and is now listed in the least concern category.
The bald eagle is strongly associated with the United States, but eagles are on the coat of arms of Germany as well as on Egyptian and Albanian flags and coats of arms.
If you live near eagles, advocate protecting their habitat. The bald eagle is another example of a species brought to the brink of extinction that is now thriving.

Photo credit: David Gale and Aymee Laurain

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Black Vulture

The Black Vulture, Coragyps atratus, is smaller than the Turkey Vulture, although it still is a large raptor. They have a dull black head and body with wrinkles covering their head and face. The tips of their bills are gray, and their legs are pale white. Black Vultures have a wingspan of 54 inches, and their wings have white tips on the underside. They weigh 3 to 5 pounds and stand 22 inches tall. While in flight, they will hold their wings flat and flap them more often than the Turkey Vulture.

Black Vultures are monogamous, often not straying far from their mate. Females will lay 1 to 4 egg clutches between February and June in caves, hollow logs, or thickets. Although they do not build nests, they will dig a hollow and put vegetation around to secure. The nesting period can be up to 100 days, with the eggs hatching within 40 days. Together, they will feed their young for up to 8 months. This dependence helps establish the strong social bonds these birds exhibit.

As carrion eaters, they are often found in landfills or along roadways where they feed on roadkill. They will usually return to known food sources instead of actively hunting. Black Vultures do not have the keen sense of smell that other vultures have and must find their food by sight. You will find them roosting in tall trees or on electrical pylons where they can easily spot food in open areas.

The Black Vulture is protected under Federal Law and can not be killed without a permit from the US Fish and Wildlife Service.

Photo Credit: Dan Kon

 

 

 

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Cooper’s Hawk

The Cooper’s hawk (Accipiter cooperii) is widely known and dispersed throughout the U.S., lower Canada, and Mexico. Look for this raptor with its steel-gray back and reddish barred chest in wooded areas and in neighborhoods. This stealth hunter can be seen flying through thick canopies of trees or gliding low to the ground to grab its prey in a split second.  Medium-sized birds such as robins and jays make up most of their diet, They will also dine on rats, mice, squirrels, bats, and an occasional lizard or snake.
Male Cooper’s hawks build the nest in a tall tree. Brood size is 2 – 6 eggs. Males provide food for the female and chicks for more than 3 months until the young fledge.  Cooper’s Hawk eggs and hatchlings are susceptible to being food for other animals like raccoons and raptors. When there is a threat near their nest, you will hear them ka-ka-ka-ka.
The Cooper’s Hawk was declining in population throughout the U.S. due to hunting and pesticide use.  Since DDT has been banned and hunting has been curbed, populations have become stable.
Cooper’s Hawks will often take up residence in a neighborhood where birdfeeders are present. If a Cooper’s Hawk is finding easy prey with the birds at your feeder, remove the feeder until the hawk has moved on. 

Photo Credit: Dan Kon 

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Red Shouldered Hawk

Red-shouldered hawks, Buteo lineatus, are most vocal in the spring. Listen for their distinct sound in forests and neighborhoods with large trees. Look for them sitting silently on perches below the canopy of the trees. You may see them on streetlights or tall fences in neighborhoods. Watch as they fly low or swoop down to catch a reptile, amphibian, or small mammal.  Voles, mice, rats, squirrels, snakes, large insects, and an occasional bird at your bird feeder are some of the dietary choices for Red-shouldered hawks. 

 

Mated pairs build their nest 35 – 65’above ground in the sturdy fork of a tree.  The nest, which may be used more than one season, is constructed of sticks and other found materials.  It may be lined with moss, bark, and fresh spring greens.  The female is most responsible for incubating the couple’s 2 to 5 eggs while the male hunts and brings food to the female.  Once the chicks are born, the male continues to bring food and the female feeds the young for 1 -3 weeks. At 5 – 7 weeks, the young leave the nest and the parents continue to feed them for up to 10 more weeks. 

 

Red-shouldered hawks are common in Florida, however, the continued loss of habitat due to urbanization is a concern. 

 

Photo Credit: Dan Kon

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Osprey

The Osprey (Pandion haliaetus) is a medium-sized bird of prey that is commonly seen along with coastal habitats within Florida. These birds, also called the Fish Hawks, have a brown upper body, white underside, and a black line across their eyes. They can reach 2 feet in length and have a 6-foot wingspan. These raptors hunt for food by using their keen senses, especially their vision, and kill prey with their talons. This is the only raptor with a reversible toe that can grasp prey with two toes in front and two toes in the back. They will soar high above their prey and dive feet first often submerging themselves to catch their prey. Their feet are barbed to be able to hold on to slippery fish. Osprey nests are large platforms built mainly of large sticks, sod, and grasses high above the ground although they will use any high man-made structure. A female Osprey will be attracted to the male that can provide the best nest. Osprey mate for life and will have between 2 to 4, creamy white blotched brown eggs a year. The eggs do not hatch all at once but will hatch 3 to 5 days apart. They fledge at 8 weeks and reach sexual maturity at 3 years of age. Because of its highly visible nest, the Osprey is a prime indicator species that can be used to monitor habitat conditions, fish populations, and overall environmental health.

Fun Fact: An extinct species of osprey, the Pandion lovensis, was discovered through fossils here in Florida. The fossils dated back to the Tortonian stage of the late Miocene sub-Epoch of the Clarendonian age. That’s about 9 million years ago.  At that time Florida was an island that spanned from the eastern Panhandle and curved down a narrow stretch of the gulf coast to central Florida. During this time temperatures were dropping and the Earth was entering the ice age known as the Quaternary glaciation. This process took approximately 3 million years in which average global temperatures dropped to between 4-7 degrees Celsius. Not all areas had ice. Florida was much cooler but was not part of the freeze. Despite the lack of a freeze, colder conditions may have prevented the ability of Pandion lovensis to survive. 

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