The bald eagle (Haliaeetus leucocephalus) is the only eagle unique to North America. The bald eagle's scientific name signifies a sea (halo) eagle (aeetos) with a white (leukos) head. At one time, the word "bald" meant "white," not hairless. Bald eagles are found throughout most of North America, from Alaska and Canada to northern Mexico. About half of the world's 70,000 bald eagles live in Alaska. Combined with British Columbia's population of about 20,000, the northwest coast of North America is by far their greatest stronghold for bald eagles. They flourish here in part because of the salmon. Dead or dying fish are an important food source for all bald eagles.
Eagles are a member of the Accipitridae family; which also includes hawks, kites, and old-world vultures. Scientists loosely divide eagles into four groups based on their physical characteristics and behavior. The bald eagle is a sea or fish eagle.
There are two subspecies of bald eagles. The "southern" bald eagle, Haliaeetus leucocephalus leucocephalus, is found in the Gulf States from Texas and Baja California across to South Carolina and Florida, south of 40 degrees north latitude. The "northern" bald eagle, Haliaeetus leucocephalus alascanus, is found north of 40 degrees north latitude across the entire continent. The largest numbers of northern bald eagles are in the Northwest, especially in Alaska. The "northern" bald eagle is slightly larger than the "southern" bald eagle. Studies have shown that "northern" bald eagles fly into the southern states and Mexico, and the "southern" bald eagles fly north into Canada. Because of these finding, the subspecies of "northern" and "southern" bald eagles has been discontinued in recent literature.
Color - Both male and female adult bald eagles have a blackish-brown back and breast; a white head, neck, and tail; and yellow feet and beak.
Juvenile bald eagles are a mixture of brown and white; with a black beak in young birds. The adult plumage develops when they are sexually mature. It takes about five years for their head and tail feathers to gradually turn white.
Some bald eagles have leucism, a genetic mutation that affects feather pigment. A leucistic bald eagle can have patches of white feathers on its body and wings; have overall faded or pale feathers; or have overall white feathers. Examples: patches of white feathers and pale feathers
The bald eagle is the only eagle confined to North America. There are no other large blackish-brown birds with a white head and tail in North American.
Size - A female bald eagle's body length varies from 35 to 37 inches; with a wingspan of 79 to 90 inches. The smaller male bald eagle has a body length of 30 to 34 inches; with a wingspan ranging from 72 to 85 inches. An eagle's average weight is ten to fourteen pounds. Northern birds are significantly larger than their southern relatives.
Eagles sit at the top of the food chain, making them more vulnerable to toxic chemicals in the environment, since each link in the food chain tends to concentrate chemicals from the lower link.
A bald eagle's lifting power is about 4 pounds. They do not generally feed on chickens or other domestic livestock, but they will make use of available food sources. Bald eagles will take advantage of carrion (dead and decaying flesh). Because of its scavenger image, some people dislike the bald eagle. Other people do not care for powerful and aggressive birds. Still other people object merely on the grounds that it is a bird of prey, which kills other animals for food.
Voice - Shrill, high pitched, and twittering are common descriptions used for bald eagle vocalizations. Eagles do not have vocal cords. Sound is produced in the syrinx, a bony chamber located where the trachea divides to go to the lungs. Bald eagle calls may be a way of reinforcing the bond between the male and female, and to warn other eagles and predators that an area is defended.
Eyesight - An eagle's eye is almost as large as a human's, but its sharpness is at least four times that of a person with perfect vision.
Skeleton - It weighs about half a pound (250 to 300 grams), and is only 5 or 6 percent of its total weight. The feathers weigh twice that much. Eagle bones are light, because they are hollow. The beak, talons, and feathers are made of keratin. eagle skeleton
Habitat - Bald eagles live along the coast and on major lakes and rivers where they feed mainly on fish.
Longevity (life expectancy) - It's possible for bald eagles in the wild to live longer than thirty years, but the average lifespan is fifteen to twenty years. A captive eagle at West Stephentown, NY lived to be at least 48 years old.
Body Temperature - About 106 degrees Fahrenheit (41 degrees Celsius)
Eagles do not sweat, so they need to use other cooling methods such as perching in the shade, panting, and holding their wings away from their body.
Tolerance to cold temperatures - A bald eagle's skin is protected by feathers lined with down. Their feet are cold resistance, consisting of mostly tendon. The outside of the bill is mostly nonliving material, with little blood supply.
bald eagle's beak
Beak - The hook at the tip is used for tearing. Behind the hook, the upper mandible, the edge sharp enough to slice tough skin, over laps the lower, creating a scissors effect. A bald eagle's beak is a strong weapon, but is also delicate enough to groom a mate's feathers or feed a small portion of food to a newly hatched chick. The beak of a female eagle is deeper (distance from top to chin) than the beak of a male. The beak and talons grow continuously, because they are made of keratin, the same substance as our hair and fingernails. The beak of a captive eagle is not warn down naturally, so must be trimmed annually.
Talons - Talons are important tools for hunting and defense. Eagles kill their prey by penetrating its flesh with their talons.
Eagles can open and close their talons at will. If an eagle is dragged into the water by a fish too large for the eagle to lift, it is because the eagle refuses to release it. In some cases this is due to hunger.
From an aerodynamics perspective this is a very complex move. Notice how the eagle flares its wings just before grabbing the fish, he needs to slow down just enough to catch his prey be he can't lose too much lift or he will end up in the water. As he swoops in, his wings make minute adjustments that are impossible to see in regular time. Finally, watch his head: it tracks the fish all the way until he has it in his claws, then snaps back up so he can continue level flight. This is an extraordinarily complex move, akin to doing a touch and go on an aircraft carrier.
Witness the planet's most breathtaking natural events, and follow the dramatic wildlife stories behind them. Combining the epic cinematography of Planet Earth, with all the emotion, intimacy and storytelling of a wildlife diary, this series charts the effects of global climatic phenomena which transform entire landscapes, drawing in thousands of animals and determining their fate.
Whereas Planet Earth gave us a global view, Nature's great events delves into the more personal, emotionally engaging approach.
Nature's great events brings us the same high definition quality and "wow factor" images we've come to associate with Planet Earth.
Using state of the art filming technology, Nature's Great Events on BBC One captures the Earth's most dramatic and epic wildlife spectacles and the intimate stories of the animals caught up in them. From the flooding of the Okavango Delta, in Africa, to the great summer melt of ice in the Arctic and the massive annual bloom of plankton in the northern Pacific Ocean, each of the six programmes features a different event set in one of the world's most iconic wildernesses. The characters include tiny grizzly bear cubs emerging from their den in snow-covered mountains; baby elephants struggling to survive against drought and lion attack in Africa; humpback whales hunting as a team; the world's largest concentration of dolphins and sharks gathering off the coast of South Africa; and polar bear families navigating their precarious way on ever-thinning ice.
The world-renowned BBC Natural History Unit uses sophisticated high definition cameras, cutting-edge aerial, underwater and ultra slow-motion filming techniques to capture in intimate detail some of the audience's best-loved wildlife, as their lives become entwined with these dramatic events. As the Earth is rapidly changing, we can no longer take these great natural events for granted. By filming the events and their fluctuations this series takes the pulse of the planet.
Nature's Great Events TV firsts include: Aerial footage of the amazing migration of the mysterious Arctic narwhal whale, with its unicorn-like tusk High definition footage of polar bears feeding on seals, struggling to survive as they hunt in broken ice and fall through
The sardine run filmed with three crews in full high definition – underwater, aerial and on the surface Pioneering the boat stabilising mount to film the sardine run – previously only used in Hollywood feature films A shoal of sardines 15 miles long surrounded by thousands of sharks; 10,000 gannets raining down on a shoal of fish and a super-pod of 5,000 common dolphins – all filmed using the high definition helicopter mount Cape fur seals coming ashore to snatch gannet chicks from their colony The eruption of the Ol Doinyo Lengai Volcano in the Serengeti – the first eruption since 1964 – filmed in HD from the ground and the air Revealing the epic scale of the wildebeest migration from the air.
#BaldEagle #Salmon #fish #eagle #seaeagle #birds #gif #loop #wildlife #birds #gif #birdsgallery #birds4all #birdgif #birdloversworldwide #birdphotography #birdphotographs #birdphotos #animals #animallovers #animalphotography #animalgifs #birds #bird #animals #nature Show less
Eagles are a member of the Accipitridae family; which also includes hawks, kites, and old-world vultures. Scientists loosely divide eagles into four groups based on their physical characteristics and behavior. The bald eagle is a sea or fish eagle.
There are two subspecies of bald eagles. The "southern" bald eagle, Haliaeetus leucocephalus leucocephalus, is found in the Gulf States from Texas and Baja California across to South Carolina and Florida, south of 40 degrees north latitude. The "northern" bald eagle, Haliaeetus leucocephalus alascanus, is found north of 40 degrees north latitude across the entire continent. The largest numbers of northern bald eagles are in the Northwest, especially in Alaska. The "northern" bald eagle is slightly larger than the "southern" bald eagle. Studies have shown that "northern" bald eagles fly into the southern states and Mexico, and the "southern" bald eagles fly north into Canada. Because of these finding, the subspecies of "northern" and "southern" bald eagles has been discontinued in recent literature.
Color - Both male and female adult bald eagles have a blackish-brown back and breast; a white head, neck, and tail; and yellow feet and beak.
Juvenile bald eagles are a mixture of brown and white; with a black beak in young birds. The adult plumage develops when they are sexually mature. It takes about five years for their head and tail feathers to gradually turn white.
Some bald eagles have leucism, a genetic mutation that affects feather pigment. A leucistic bald eagle can have patches of white feathers on its body and wings; have overall faded or pale feathers; or have overall white feathers. Examples: patches of white feathers and pale feathers
The bald eagle is the only eagle confined to North America. There are no other large blackish-brown birds with a white head and tail in North American.
Size - A female bald eagle's body length varies from 35 to 37 inches; with a wingspan of 79 to 90 inches. The smaller male bald eagle has a body length of 30 to 34 inches; with a wingspan ranging from 72 to 85 inches. An eagle's average weight is ten to fourteen pounds. Northern birds are significantly larger than their southern relatives.
Eagles sit at the top of the food chain, making them more vulnerable to toxic chemicals in the environment, since each link in the food chain tends to concentrate chemicals from the lower link.
A bald eagle's lifting power is about 4 pounds. They do not generally feed on chickens or other domestic livestock, but they will make use of available food sources. Bald eagles will take advantage of carrion (dead and decaying flesh). Because of its scavenger image, some people dislike the bald eagle. Other people do not care for powerful and aggressive birds. Still other people object merely on the grounds that it is a bird of prey, which kills other animals for food.
Voice - Shrill, high pitched, and twittering are common descriptions used for bald eagle vocalizations. Eagles do not have vocal cords. Sound is produced in the syrinx, a bony chamber located where the trachea divides to go to the lungs. Bald eagle calls may be a way of reinforcing the bond between the male and female, and to warn other eagles and predators that an area is defended.
Eyesight - An eagle's eye is almost as large as a human's, but its sharpness is at least four times that of a person with perfect vision.
Skeleton - It weighs about half a pound (250 to 300 grams), and is only 5 or 6 percent of its total weight. The feathers weigh twice that much. Eagle bones are light, because they are hollow. The beak, talons, and feathers are made of keratin. eagle skeleton
Habitat - Bald eagles live along the coast and on major lakes and rivers where they feed mainly on fish.
Longevity (life expectancy) - It's possible for bald eagles in the wild to live longer than thirty years, but the average lifespan is fifteen to twenty years. A captive eagle at West Stephentown, NY lived to be at least 48 years old.
Body Temperature - About 106 degrees Fahrenheit (41 degrees Celsius)
Eagles do not sweat, so they need to use other cooling methods such as perching in the shade, panting, and holding their wings away from their body.
Tolerance to cold temperatures - A bald eagle's skin is protected by feathers lined with down. Their feet are cold resistance, consisting of mostly tendon. The outside of the bill is mostly nonliving material, with little blood supply.
bald eagle's beak
Beak - The hook at the tip is used for tearing. Behind the hook, the upper mandible, the edge sharp enough to slice tough skin, over laps the lower, creating a scissors effect. A bald eagle's beak is a strong weapon, but is also delicate enough to groom a mate's feathers or feed a small portion of food to a newly hatched chick. The beak of a female eagle is deeper (distance from top to chin) than the beak of a male. The beak and talons grow continuously, because they are made of keratin, the same substance as our hair and fingernails. The beak of a captive eagle is not warn down naturally, so must be trimmed annually.
Talons - Talons are important tools for hunting and defense. Eagles kill their prey by penetrating its flesh with their talons.
Eagles can open and close their talons at will. If an eagle is dragged into the water by a fish too large for the eagle to lift, it is because the eagle refuses to release it. In some cases this is due to hunger.
From an aerodynamics perspective this is a very complex move. Notice how the eagle flares its wings just before grabbing the fish, he needs to slow down just enough to catch his prey be he can't lose too much lift or he will end up in the water. As he swoops in, his wings make minute adjustments that are impossible to see in regular time. Finally, watch his head: it tracks the fish all the way until he has it in his claws, then snaps back up so he can continue level flight. This is an extraordinarily complex move, akin to doing a touch and go on an aircraft carrier.
Witness the planet's most breathtaking natural events, and follow the dramatic wildlife stories behind them. Combining the epic cinematography of Planet Earth, with all the emotion, intimacy and storytelling of a wildlife diary, this series charts the effects of global climatic phenomena which transform entire landscapes, drawing in thousands of animals and determining their fate.
Whereas Planet Earth gave us a global view, Nature's great events delves into the more personal, emotionally engaging approach.
Nature's great events brings us the same high definition quality and "wow factor" images we've come to associate with Planet Earth.
Using state of the art filming technology, Nature's Great Events on BBC One captures the Earth's most dramatic and epic wildlife spectacles and the intimate stories of the animals caught up in them. From the flooding of the Okavango Delta, in Africa, to the great summer melt of ice in the Arctic and the massive annual bloom of plankton in the northern Pacific Ocean, each of the six programmes features a different event set in one of the world's most iconic wildernesses. The characters include tiny grizzly bear cubs emerging from their den in snow-covered mountains; baby elephants struggling to survive against drought and lion attack in Africa; humpback whales hunting as a team; the world's largest concentration of dolphins and sharks gathering off the coast of South Africa; and polar bear families navigating their precarious way on ever-thinning ice.
The world-renowned BBC Natural History Unit uses sophisticated high definition cameras, cutting-edge aerial, underwater and ultra slow-motion filming techniques to capture in intimate detail some of the audience's best-loved wildlife, as their lives become entwined with these dramatic events. As the Earth is rapidly changing, we can no longer take these great natural events for granted. By filming the events and their fluctuations this series takes the pulse of the planet.
Nature's Great Events TV firsts include: Aerial footage of the amazing migration of the mysterious Arctic narwhal whale, with its unicorn-like tusk High definition footage of polar bears feeding on seals, struggling to survive as they hunt in broken ice and fall through
The sardine run filmed with three crews in full high definition – underwater, aerial and on the surface Pioneering the boat stabilising mount to film the sardine run – previously only used in Hollywood feature films A shoal of sardines 15 miles long surrounded by thousands of sharks; 10,000 gannets raining down on a shoal of fish and a super-pod of 5,000 common dolphins – all filmed using the high definition helicopter mount Cape fur seals coming ashore to snatch gannet chicks from their colony The eruption of the Ol Doinyo Lengai Volcano in the Serengeti – the first eruption since 1964 – filmed in HD from the ground and the air Revealing the epic scale of the wildebeest migration from the air.
#BaldEagle #Salmon #fish #eagle #seaeagle #birds #gif #loop #wildlife #birds #gif #birdsgallery #birds4all #birdgif #birdloversworldwide #birdphotography #birdphotographs #birdphotos #animals #animallovers #animalphotography #animalgifs #birds #bird #animals #nature Show less
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