Focused Surveys for
Regulatory Status Species

There are many State and Federally listed special status species that require special protection and mitigation measures. These species are listed as Threatened, Endangered or Candidate by the Endangered Species Act (ESA) and the California Endangered Species Act (CESA). Though our network of associated biologists, we have the necessary permits to provide protocol surveys for several protected wildlife species. These surveys would determine the presence or absence of a species in a project area. We assess habitat values, quantify population abundance and distribution, prepare impact mitigation, and secure required permits. We consult with the regulatory agencies throughout the process to insure all laws and regulations are met.

• Quino Checkerspot Butterfly                                    ESA Endangered
• Arroyo Toad (presence/absence)                             ESA Endangered
• Red-legged Frog (presence/absence)                      ESA Threatened
• Mountain Yellow-legged Frog                                   ESA Endangered, CESA Candidate Endangered
• Desert Tortoise                                                             ESA & CESA Threatened
• Rubber Boa                                                                    CESA Threatened
• Bald Eagle                                                                      CESA Endangered
• Light-footed Clapper Rail                                           ESA & CESA Endangered
• Yuma Clapper Rail                                                       ESA Endangered, CESA Threatened
• Yellow-billed Cuckoo                                                   ESA Candidate, CESA Endangered
• Northern Spotted Owl                                                 ESA Threatened
• Southwestern Willow Flycatcher                              ESA & CESA Endangered
• Least Bell’s Vireo                                                          ESA & CESA Endangered
• California Gnatcatcher                                                ESA Threatened
• San Bernardino Kangaroo Rat                                   ESA Endangered
• Stephen’s Kangaroo Rat                                              ESA Endangered & CESA Threatened
• Peninsular Bighorn Sheep (presence/absence)      ESA Endangered & CESA Threatened

In addition to the Threatened and Endangered species listed above. We conduct surveys for the following sensitive wildlife species.

• Western spadefoot toad
• Western pond turtle
• Golden Eagle
• Peregrine Falcon
• California Spotted Owl
• Burrowing Owl
• San Bernardino Flying Squirrel