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Bearded Vulture (Lammergeyer), Andalusia, Spain

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The bearded vulture, or lammergeier, is one intense bird. It lives on a steady diet of bones and dyes its feathers blood red, giving it the reputation of one of the most metal birds in the animal kingdom.
Eighty percent of the bird's diet consists of bone and bone marrow. Its stomach acid has a pH of about 1, so the dense material can be digested in under 24 hours [PDF]. The lammergeier is a scavenger; after finding a picked-over carcass, the bird will drop it from a tremendous height to shatter it into swallow-able pieces. Bearded vultures even have favorite breaking spots that are ominously called ossuaries. Besides bones, they also eat small lizards and turtles.
Bearded Vultures are most commonly monogamous, and breed once a year. Sometimes, especially in certain areas of Spain and France, bachelor lammergeiers will join a pre-existing couple to create a polyandrous trio. Females accept secondary mates because it increases the chances of producing offspring and doubles her protection. The birds usually don't lay more than three eggs, so they can use all the help they can get. These giant birds can grow up to 4 feet tall. They have a wingspan between 7 and 9 feet and usually weigh around 10 to 15 pounds.
Together, the birds form a minor lineage called Accipitridae. Egyptian Vultures have white feathers with bright yellow faces. Unlike their cousins, these vultures are tiny; they're usually a little under 4 pounds, with a wingspan of 5.6 feet, making them the smallest of all vultures.
11 Facts About the Bone-Eating Bearded Vulture
BY REBECCA OCONNELL AUGUST 13, 2014

Imgur
The bearded vulture, or lammergeier, is one intense bird. It lives on a steady diet of bones and dyes its feathers blood red, giving it the reputation of one of the most metal birds in the animal kingdom.

1. Lammergeier means "lamb-vulture" in German

As a result of its appearance and diet, the vulture has a nasty reputation of carrying away lambs, calves, and even children. This is, of course, disputable; the birds are not known to be hostile toward (living) humans.

2. It eats mostly bones.

Eighty percent of the bird's diet consists of bone and bone marrow. Its stomach acid has a pH of about 1, so the dense material can be digested in under 24 hours [PDF]. The lammergeier is a scavenger; after finding a picked-over carcass, the bird will drop it from a tremendous height to shatter it into swallow-able pieces. Bearded vultures even have favorite breaking spots that are ominously called ossuaries. Besides bones, they also eat small lizards and turtles.

3. Wild lammergeiers rub soil into their feathers to look more intimidating.

Imgur
Bearded vultures come in various shades, from pure white to orange-red. Soils stained with iron oxide give the birds their fiery appearance. Lammergeiers apply the dirt with their claws and then preen for about an hour to ensure a bright orange glow. They are also attracted to other red things, like leaves and red wood. Captive birds also partake in this behavior, which suggests the activity is instinctual, not learned [PDF].

4. The bright orange coloring is a status symbol.

The orangey soil doesn't have any practical purposes; it certainly doesn't make for good camouflage (though the birds have no natural predators anyway). Scientists have noticed that the birds' age and size are directly correlated to the intensity of color. It is theorized that the orange hue is a status symbol. More soiled feathers indicates that the lammergeier had the time and resources to find an adequate place to bathe; the brightest-colored vultures should have the most territory and knowledge of their surroundings. Interestingly, these baths are done in secret, so most of the information gathered has been through spying on captive birds [PDF].

5. Lammergeiers are monogamous.

Bearded Vultures are most commonly monogamous, and breed once a year. Sometimes, especially in certain areas of Spain and France, bachelor lammergeiers will join a pre-existing couple to create a polyandrous trio. Females accept secondary mates because it increases the chances of producing offspring and doubles her protection. The birds usually don't lay more than three eggs, so they can use all the help they can get.

6. It’s one of the largest old world vultures.

These giant birds can grow up to 4 feet tall. They have a wingspan between 7 and 9 feet and usually weigh around 10 to 15 pounds.

7. Its closest living relative is the Egyptian Vulture.

Together, the birds form a minor lineage called Accipitridae. Egyptian Vultures have white feathers with bright yellow faces. Unlike their cousins, these vultures are tiny; they're usually a little under 4 pounds, with a wingspan of 5.6 feet, making them the smallest of all vultures.

8. They can live to be as old as 45.

In captivity, lammergeiers can live to the ripe old age of 45. The average lifespan of a wild vulture is only 21.4 years, but that factors in the untimely deaths that come with the dangers of the wild.

9. Overhunting has led to the endangerment of the species.

harvard.edu
Believing that the vultures would carry off babies, concerned parents hunted the birds to the brink of extinction. The vultures were completely eradicated from most areas in Eastern Europe by the 1990s .

Today, the vultures have been categorized as "least concern" by the IUCN thanks to having a large range of habitats and the efforts of various environmental groups.
https://www.mentalfloss.com/article/58253/11-facts-about-bone-eating-bearded-vulture
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Donnajames

These birds are huge!!! But also pretty in a macabre sort of way. Great info also. Thanks, Miriam. dj

Oputz

Thank you so much for all the info on this fantastic bird!

Wow! Amazing photo and fantastic information. Learning something about the bird actually made doing the puzzle even more fun/interesting for me. Thanks for all of this!

egdoht

a memorable photograph of a macabre bird... thanks mischa for including complete info... tom

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