What agency would you contact to report a high number of sightings of an endangered species?
Contact your state Department of Wildlife/Commissariats.
If your in the United States, you could also contact the AU'S.
Fish & Wildlife Service (the federal branch equivalent to the
state agencies). Do some research before you call, just because
that species is listed as endangered doesn't mean nobody sees them,
so they might be common where you live but rare
inter/nationally.
Additional Information: Many times a specific endangered species
will draw interest from their region, as Manatees are listed by the
US Fish and Wildlife Endangered Species List, but the state of
Florida has the Florida Manatee listed as endangered also, and
takes special interest in any reports of manatee sightings, their
location, their condition, and any old scars. There are several
sites, and toll-free numbers, and the public is encouraged to use
them for reporting any manatees that have been sighted. While other
states might have programs like the state of South Carolina, and
it's program setup for the Swallow-tailed Kite, and any sightings
of this bird foraging, or nesting are encouraged on their websites,
or toll free number. Then there are report forms on-line, such as
New Jersey uses with their NJ Endangered and Non-game Species
Program, or NJ-ENSP. Working through this department the Metro
Wildlife Survey hopes to get a clear understanding of the numbers,
and locations of threatened and endangered species through out the
state with the help of the people who live there. A final example
is South Africa, and a program designed through the University of
Cape Town, that allows citizens to report the sighting of rare,
unusual, threatened and even endangered birds in a "nonthreatening
way". The program hopes to encourage people to participate in
protecting their wildlife, even if they are unsure of it's status
of endangerment, stating that "If you are not sure if something is
worth reporting, then report it." The hope is to build a reporting
program with lists of species, and a system of forwarding all
information related to any threatened, and endangered species to
the appropriate departments. It appears that information for
reporting sightings is not consolidated into international
programs, but more specific to each region or country, or the
species itself. For more details, please see the sites listed
below.