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Special Status Species
"Special Status Species" is a universal term used in the scientific community for species that are considered sufficiently rare that they require special consideration and/or protection and should be, or have been, listed as rare, threatened or endangered by the Federal and/or State governments. Below are some governmental and non-governmental websites where listings of special status species can be found:
Bird Swainson's Hawk Buteo swainsoni
Listed as "Threatened by the State" CDFG Photo
  • Rare (State) - this is technically used only for plants, as defined under the California Native Plant Protection Act. When CESA was enacted, all animals with a rare classification were reclassified as threatened; however, rare plants were not.
  • Species of Concern (Federal) - species for which existing information indicates it may warrant listing as threatened or endangered but for which substantial information for listing is still lacking.
  • Species of Special Concern (State) - special plant/animal species tracked by California Natural Diversity Data Base regardless of their legal or protection status. For more info visit CNDDB web site:
The Federal/State Endangered Species Acts frequently use the following terms when referring to special status species:
  • Species - any subspecies of fish, wildlife, insect, or plants, and any distinct population segment of any species, which interbreeds when mature.
  • Endangered (Federal & State) - any species that is in danger of extinction throughout all or a significant portion of its range. (Except insect pests - Feds).
  • Threatened (Federal & State)- any species likely to become an endangered species within the foreseeable future throughout all or a significant portion of its range.
plantSacramento Orcutt Grass Orcuttia viscida
Listed as "Endangered"
by both State & Federal govt - CDFG graphi (c)
Inquire about the availability of documents in alternate formats

Department of Environmental Review and Assessment
827 7th Street, Sacramento California 95814
phone (916) 874-7914  fax (916) 874-8343