birdsofprey

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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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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