Bald Eagle


Scientific name: Haliaeetus Leucocephalus
Family name: Accipitridae

Are they endangered?  No, they are not endangered worldwide.   (IUCN Red list:  Least concern)  They were endangered in the U.S. but conservation efforts have helped their numbers rise.   

What are their past/present problems?  The Bald Eagle became endangered because hunters shot them and DDT (a pesticide) was used by farmers to get rid of insects.  The eagle’s prey ate the insects, died of the poison, and then the prey was eaten by the eagle.  This caused the females to lay eggs that were thin-shelled and could easily break.  Every time an egg would get crushed, there would be one less Bald Eagle in the world.  Habitat loss and having less bison to eat are also caused a hardship for Bald Eagles.

What do they look like?  Their bodies are dark brown but the most recognizable features of this bird are its white head and tail.

How big are they?  Bald Eagles are about three feet long which is very large for an eagle.  If their wings were spread out, they would be between 6 and 8 feet wide.

How many eggs do they lay?  The female lays two white eggs once a year.  The eggs will hatch in about 4 to 5 weeks.
How long do the fledglings stay in the nest?  Bald Eagles make stick nests, also called aeries, in a tall tree or on a rock ledge that is in a place where no one will bother them.   The eaglets (baby eagles) stay in the nest for about 3 months.
When do they hunt?  They hunt during the daytime. (diurnal)
What do they eat?  They like fish the best but will kill ducks and mammals, too.  They also like to steal prey that has been killed by other raptors.  Sometimes they eat dead animals.
Where do they live?  They live in Canada, the United States, Mexico, and Puerto Rico.
What kind of place do they like to live in?  They like to live in forests by water so they can get fish, their favorite food and make nests high up in the trees, away from people.
Interesting facts:
The Bald Eagle has been the symbol of USA—and its national bird--since 1782.
The Bald Eagle migrates.  When it comes back, it uses the same nest every year.  The birds add more sticks, branches, and things they find until the nest gets very big and very heavy.  Sometimes they get so heavy that they break the branches they are sitting on.
Bald Eagles are not bald.  They have white feathers on their heads.   However the white feathers do not appear on a Bald Eagle’s head until it is four years old.

Works Cited:

Alderfer, Jonathan.  Complete Birds of North America.  Washington, D.C.:  National Geographic, 2006.

Alsop, Fred.  Birds of North America.  New York:  DK Publishing, 2001.

“Bald eagle.”   Encyclopedia of Animals.  2006 ed.

Bald eagle, Haliaeetus leucocephalus.   8 Jan. 2008.  <http://www.nj.gov/dep/fgw/ensp/pdf/end-thrtened/baldeagle.pdf>.

Haliaeetus leucocephalus.  8 Jan. 2008. <http://www.iucnredlist.org/search/details.php/49336/all>.