The peregrine falcon population
dropped dramatically worldwide after the 1940's due to DDT, illegall
hunting,
and illegal taking of young falcons by would-be falconers. But the protection
afforded by the Endangered Species
Act has allowed the Peregrine to recover and the bird was removed
from the endangered list in 1999. See information from the US
Fish and Wildlife Service. More
information from the
Peregrine Fund.
Crested
Shelduck (Tadorna cristata)
"The crested shelduck is classified as a member of the order Anseriformes (Screamers and ducks) and is a member of the family Anatidae. It is classified as a critically endangered species due to an estimated population of less than 50 mature crested shelducks. The species may already be extinct - it is kept in the critically endangered category because of recent unconfirmed reports of sightings. If the species still exists, it can be found in eastern Asia." -info from Geocities
An
"endangered species" is any species of fish, animal, or plant
that is in danger of extinction throughout all or a significant portion
of
its range. Subspecies and distinct populations of vertebrate species
may also be listed. There are approximately 1500 endangered species,
900 in
the United States. A "threatened species" is any species of fish, animal,
or plant that is likely to become an endangered species within the foreseeable
future. There are 270 threatened species, 
230
in the United States. A candidate species is one whose status warrants
listing but whose listing is precluded by lack of administrative resources
and/or funding. See more information on the Audubon
Society website from which the above infomation was condensed.
Also see the Audubon
Society Watchlist and the
IUCN Red Lists for a list of worldwide threatened species and an
informative explanation of what being in danger of extinction really
means.
Today, 2009, it is estimated that one of every eight bird species in the world is at risk of extinction and in the U.S. and England it is closer to one in four. See also Extinct Birds
Endangered U.S. Birds
Endangered
Species Act
Endangered
Species - general
Endangered Species
Program- U.S. Fish and Wildlife Service
Endangered
Species- National Audubon Society
Globally Threatened Bird Forums
Hawaii's
Vanishing Birds
National
Audubon Society's Watch List
Rare Birds of the World
The
Feather Trade and the American Conservation Movement
Threatened U.S. Birds
UNEP World Conservation
Monitoring Centre
U.S. Fish and Wildlife List of Threatened and
Endangered Bird Species
World
list of Endangered and Threatened Birds
World
Twitch-finding rare birds around the world
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