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Raptor
Club & Rehabilitation Program
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Amicus is a Golden Eagle (Aquila Chrysaetos). He came to WSU in
2006 from the North Eastern Washington region. He is about 3 or 4 years old
and is just coming into his white tail feathers. Amicus is diagnosed to be
completely blind due to either traumatic injury or disease. He also suffers
minor Neurological damage. As a result of both he will stay in captivity the
rest of his life.
Golden Eagles are birds of open country, not forests, from desert grasslands
to above timberline. They build large stick nests in trees or cliff walls
where they have plenty of room to maneuver.
Adult Golden Eagles are nearly alike except the female is larger than the
male. Their plumage is dark brown overall, with some white at the base of
the tail and golden-to-blond feathers on the back of the head (the nape).
Bill and talons are black; cere (soft membrane that covers the nostrils) and
feet are yellow. Immature birds have a broad, white tail band with a black
edge, and large white patches on the undersides of the wings at the base of
the primary feathers. Sometimes a white line extends from this large patch
toward the body. In their second year, this white patch becomes smaller.
Adults weigh 9 to12.5 pounds.
Golden Eagles use their tremendous eyesight to locate prey. They prefer to
attack upwind, to increase their aerodynamic control and maneuverability.
The birds prey upon a variety of creatures from prairie dogs, cottontail
rabbits and ground squirrels to grouse, ducks, reptiles and smaller birds.
The birds will also feed on carrion, which sometimes results in death from
vehicle collisions or poisoning.
Golden Eagles defend large breeding area home ranges. Though their
territories may be larger, they can not defend the entire area continuously.
Often, when an intruder enters an eagle's home range, the bird will fly in a
"roller coaster" flight, by soaring upward to a point, then tucking its
wings to descend. This pattern can be repeated in a series; the undulating
flight is truly inspiring to watch.
Though nesting territories may be occupied yearly, there are generally
several nest sites in the area that are used on different years. These nests
may be over 0.5 miles apart. Alternate nests range from 1 to 11 per
territory.
Nests are constructed of large twigs or roots and can be lined with moss,
bark, fur or other soft material. The nest may become huge, as much as 8 to
10 feet across and 3 to 4 feet deep.
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