USFWS Lead ![](media/image1.png){width="0.9888888888888889in"
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Lead Field Office

[Common Name]{.underline} [Scientific Name]{.underline}
[Classification]{.underline} [Region]{.underline} [for Region
2]{.underline}

**[ENDANGERED/THREATENED SPECIES]{.underline}**

American burying beetle *Nicrophorus americanus* E 5 Tulsa

black‑capped vireo *Vireo atricapilla* E 2 Austin

Eskimo curlew *Numenius borealis* E, PE 7 Clear Lake

gray bat *Myotis grisescens* E 3 Tulsa

Indiana bat *Myotis sodalis* E 3 Tulsa

interior least tern ^(1)^ *Sternula* (*Sterna*) *antillarum* E 3 Tulsa

Ouachita rock pocketbook mussel *Arkansia wheeleri* E 2 Tulsa

Ozark big‑eared bat *Corynorhinus townsendii ingens* E 2 Tulsa

red‑cockaded woodpecker *Picoides borealis* E 4 Clear Lake

scaleshell mussel *Leptodea leptodon* E 3 Tulsa

whooping crane *Grus americana* E, CH 2 Regional Office

winged mapleleaf mussel *Quadrula fragosa* E 3 Tulsa

American alligator *Alligator mississippiensis* T, SA 4 Regional Office

Arkansas River shiner ^(2)^ *Notropis girardi* T, CH 2 Tulsa

eastern prairie fringed orchid *Platanthera leucophaea* T, LE 3 Tulsa

leopard darter *Percina pantherina* T, CH 2 Tulsa

Neosho madtom *Noturus placidus* T 6 Tulsa

Ozark cavefish *Amblyopsis rosae* T 4 Tulsa

piping plover *Charadrius melodus* T 3 Corpus Christi

western prairie fringed orchid *Platanthera praeclara* T, LE 3 Tulsa

**[PROPOSED ENDANGERED/THREATENED AND CANDIDATE SPECIES]{.underline}**

Arkansas darter *Etheostoma cragini* C 6 Tulsa

lesser prairie-chicken *Tympanuchus pallidicinctus* Cw 2 Tulsa

Neosho mucket mussel *Lampsilis rafinesqueana* C 4 Tulsa

**[RECOVERED/DELISTED (MONITORED) SPECIES]{.underline}**

bald eagle *Haliaeetus leucocephalus* R/D, M 3 Regional Office

American peregrine falcon *Falco peregrinus anatum* R/D, M 1 Phoenix

Arctic peregrine falcon *Falco peregrinus tundrius* R/D, M 1 Phoenix

peregrine falcon *Falco peregrinus* R/D, M 1 Phoenix

(unspecified subspecies)

**[ENDANGERED/THREATENED SPECIES EXTIRPATED FROM OKLAHOMA]{.underline}**

Bachman's warbler *Vermivora bachmanii* E 4 Clear Lake

black-footed ferret *Mustela nigripes* E 6 Phoenix

gray wolf *Canis lupus* E 3 Regional Office

ivory-billed woodpecker *Campephilus principalis* E 4 Clear Lake

red wolf *Canis rufus* E 4 Regional Office

grizzly bear *Ursus arctos horribilis* T 6 Albuquerque

**[EXTINCT SPECIES]{.underline}**

Carolina parakeet *Conuropsis carolinensis* X

passenger pigeon *Ectopistes migratorius* X

Rocky Mountain locust *Melanopus spretus* (Walsh) X

**[CLASSIFICATION DEFINITIONS]{.underline}**

**E -- Endangered --** A species in danger of extinction throughout all
or a significant portion of its range.

**T -- Threatened** -- A species likely to become endangered within the
foreseeable future throughout all or a significant portion of its range.

**P -- Proposed** -- A species proposed for federal listing as
endangered or threatened.

**C -- Candidate** -- Those species for which sufficient information on
biological status and threats exists to propose to list them as
endangered or threatened. We encourage their consideration in
environmental planning and partnerships; however, none of the
substantive or procedural provisions of the Endangered Species Act apply
to candidate species.

**Cw -- Candidate, Warranted but precluded** -- The petitioned listing
action is warranted but that (a) the immediate proposal of a regulation
and final promulgation of regulation implementing the petitioned action
is precluded by pending higher priority proposals, and (b) expeditious
progress is being made to add qualified species to the lists of
endangered or threatened species.

**SA -- Similarity of appearance** -- A species that is listed as
endangered or threatened because it closely resembles another endangered
or threatened species. This species is not subject to Endangered Species
Act, Section 7 consultation.

**PDL -- Proposed for delisting** -- Any species for which a proposed
rule to delist the species has been published in the Federal Register.

**CH -- Critical habitat designated** -- Administratively defined by the
Endangered Species Act, the specific areas within the geographic area
occupied by a species, at the time it is listed, on which are found
those physical or biological features essential to conserve the species
and that may require special management considerations or protection;
and specific areas outside the geographic area occupied by the species
at the time it is listed upon determination that such areas are
essential to conserve the species.

**R/D -- Recovered/Delisted --** The factors that initially led to a
species listing are remedied and protection under the Endangered Species
Act is no longer needed. Only when adequate legal mechanisms independent
of the Act are implemented to manage a listed species whose populations
have recovered can the species be truly said to no longer require
Endangered Species Act protection and thus be considered for delisting.

**M -- Monitored** --The 1988 amendments to the Act recognized this
potential conflict involving recovered/delisted species and their
removal from the protective oversight of the Act. Section 4 of the Act
was amended by adding a requirement that recovered species be monitored
for at least 5 years after delisting.

**LE -- Likely extirpated** -- Based on the best available information
and species experts, the species has likely been destroyed or removed
completely from a particular area, region, or habitat. The species,
however, may exist elsewhere.

**X -- Extinct** -- A species no longer in existence and delisted under
the Endangered Species Act.

**PE -- Possibly Extinct --** A species thought to no longer be in
existence due to the extended time since substantiated data have been
reported validating an occurrence.

**[FOOTNOTE DEFINITIONS]{.underline}**

^(1)^ Interior population of least terns. The U. S. Fish and Wildlife
Service, because of the taxonomic uncertainty of least tern subspecies
in North America, did not list the subspecies and instead designated as
endangered those least terns occurring in interior North America.

^(2)^ Arkansas River Basin population of the Arkansas River shiner.