AND THE ROCKY MOUNTAIN ARSENAL
The bald eagle's scientific
name is Haliaeetus leucophalus, which means "white-headed
Adult bald eagle females
usually are 30 percent larger than the males weighing up to 14
pounds and growing up to 3 1/2 feet long with up to an 8 foot
wingspan, while males can weigh up to 10 pounds and grow up to
3 feet long with up to a 6 1/2 foot wingspan.
Bald eagles reach adult
size when they are about 12 weeks old, but don't attain their
signature white head and tail feathers until they are four or
five years old.
During normal flight,
bald eagles can average 30 to 40 miles per hour. When diving,
they can reach speeds up to 100 miles per hour.
In the wild, the bald
eagles average life span is 20 years. In captivity, they can
live 30 to 50 years.
To protect winter bald
eagles at the Rocky Mountain Arsenal, the U.S. Fish and Wildlife
Service has established the Bald Eagle Management Area (BEMA).
BEMA is approximately 7,000 acres of land on the Arsenal with
restricted human access during the eagle's roost at the Arsenal.
Although the bald eagle
is considered a "threatened" species, under the Endangered
Species Act, bald eagles are given the same amount of protection
as those that are endangered.
An Army contractor first
discovered bald eagles at the Rocky Mountain Arsenal in 1986
when he noticed a winter roost site in a cottonwood grove near
The Rocky Mountain Arsenal
serves as an important winter destination for bald eagles as
the site provides an abundance of food sources and is relatively
undisturbed by human activity.
Typically more than 100 bald eagles use the Arsenal from November to March each year.
[Cleanup Fact Sheets][Arsenal Cleanup]
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