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(Many Paths)
An Online Newsletter Celebrating Native America
 
 
 
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Turkey Vulture
(Cathartes aura)
 
 
by Cornell Lab of Ornithology

If you’ve gone looking for raptors on a clear day, your heart has probably leaped at the sight of a large, soaring bird in the distance– perhaps an eagle or osprey. But if it's soaring with its wings raised in a V and making wobbly circles, it's likely a Turkey Vulture. These birds ride thermals in the sky and use their keen sense of smell to find fresh carcasses. They are a consummate scavenger, cleaning up the countryside one bite of their sharply hooked bill at a time, and never mussing a feather on their bald heads.

 

At a Glance

Measurements

Both Sexes

    Length
        25.2–31.9 in
        64–81 cm

    Wingspan
        66.9–70.1 in
        170–178 cm

    Weight
        70.5 oz
        2000 g

    Relative Size
        Smaller than an eagle; larger
        than a Red-tailed Hawk

    Other Names
        Urubu à tête rouge,
            Vautour (French)
        Zopilote Aura,
            Aura cabecirroja (Spanish)

Habitat
Food
Nesting
Behavior
Conservation
Open Woodland
Carrion
Cliff
Soaring
Least Concern

Cool Facts
The oldest recorded Turkey Vulture was at least 16 years, 10 months old when it was found in Ohio, the same state where it had been banded.

Habitat
 
Look for Turkey Vultures as they cruise open areas including mixed farmland, forest, and rangeland. They are particularly noticeable along roadsides and at landfills. At night, they roost in trees, on rocks, and other high secluded spots.


Food
Carrion

Turkey Vultures eat carrion, which they find largely by their excellent sense of smell. Mostly they eat mammals but are not above snacking on reptiles, other birds, amphibians, fish, and even invertebrates. They prefer freshly dead animals, but often have to wait for their meal to soften in order to pierce the skin. They are deft foragers, targeting the softest bits first and are even known to leave aside the scent glands of dead skunks. Thankfully for them, vultures appear to have excellent immune systems, happily feasting on carcasses without contracting botulism, anthrax, cholera, or salmonella. Unlike their Black Vulture relatives, Turkey Vultures almost never attack living prey.

Nesting

Nesting Facts

    Clutch Size
        1–3 eggs

    Number of Broods
        1 broods

    Egg Length
        2.6–3 in
        6.5–7.5 cm

    Egg Width

        1.7–2.1 in
        4.4–5.3 cm

    Incubation Period
        28–40 days

    Nestling Period
        60–84 days

    Egg Description
        Creamy white tinged with gray,
        blue, or green, and spotted with
        purple to brown.

    Condition at Hatching
        Downy, often blind, and         defenseless beyond a quiet hiss.


Nest Description

Turkey Vultures don’t build full nests. They may scrape out a spot in the soil or leaf litter, pull aside obstacles, or arrange scraps of vegetation or rotting wood. Once found, many of these nest sites may be used repeatedly for a decade or more.

Nest Placement
Cliff

Turkey Vultures nest in rock crevices, caves, ledges, thickets, mammal burrows and hollow logs, fallen trees, abandoned hawk or heron nests, and abandoned buildings. These nest sites are typically much cooler (by 13°F or more) than surroundings, and isolated from human traffic or disturbance. While they often feed near humans, Turkey Vultures prefer to nest far away from civilization.

Behavior
Soaring

The Turkey Vulture's distinctive slow, teetering flight style probably helps the bird soar at low altitudes, where it is best able to use its nose to find carrion. At other times they may soar high on thermals and form mixed flocks or kettles. On the ground they move with ungainly hops and are less agile than Black Vultures. Often, especially in the morning, they can be seen standing erect, wings spread in the sun, presumably to warm up, cool off, or dry off. Outside of the breeding season, Turkey Vultures form roosts of dozens to a hundred individuals. When Turkey Vultures court, pairs perform a "follow flight" display where one bird leads the other through twisting, turning, and flapping flights for a minute or so, repeated over periods as long as 3 hours. Migrating flocks can number in the thousands. At carcasses, several Turkey Vultures may gather but typically only one feeds at a time, chasing the others off and making them wait their turn. Despite their size, Turkey Vultures are often driven off by smaller Black Vultures, Crested Caracaras, Zone-tailed Hawks, and other species.

Conservation
Least Concern

Turkey Vultures increased in number across North America from 1966 to 2014, according to the North American Breeding Bird Survey. Partners in Flight estimates a global breeding population of 18 million with 28% spending some part of the year in the U.S., 9% in Mexico, and 1% breeding in Canada. The species rates a 5 out of 20 on the Continental Concern Score. Turkey Vulture is not on the 2014 State of the Birds Watch List. These birds were threatened by side-effects of the pesticide DDT, but today they are among the most common large carnivorous birds in North America. However, because they live on rotting meat, like California Condors, they can fall victim to poisons or lead in dead animals. The main concern is lead shot that ends up in carcasses or gut piles left by hunters. The animals eat the shot and eventually suffer lead poisoning. Other threats include trapping and killing due to erroneous fears that they spread disease. Far from it, vultures actually reduce the spread of disease.

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