BBI staff can perform any survey for any biological resource anywhere in the State of California. BBI biologists also have experience and selected permits to conduct surveys for species outside of the State of California. Our services range from standard, agency-mandated protocol surveys for endangered, threatened, and sensitive species, to carefully developed and project-specific surveys for a wide array of resources, including protocol designs subject to rigid statistical analysis as is becoming commonplace for solar and wind energy siting cases.  


Threated and Endangered Species

BBI biologists are permitted to conduct surveys and analyze potential project effects for most threatened and endangered species occurring in the State of California. These species include:


  • California Condor (Gymnogyps californianus)
  • Bald Eagle (Haliaeetus leucocephalus)
  • Swainson’s Hawk (Buteo swainsoni)
  • Peregrine Falcon (Falco peregrinus)
  • Snowy Plover (Charadrius nivosus)
  • California Least Tern (Sterna antillarum browni)
  • Western Yellow-billed Cuckoo (Coccyzus americanus)
  • Southwestern Willow Flycatcher (Empidonax traillii extimus)
  • Least Bell’s Vireo (Vireo belli pusillus)
  • California Gnatcatcher (Polioptila californica)


  • Mohave Ground Squirrel (Xerospermophilus mohavensis)
  • Pacific Pocket Mouse (Perognathus longimembris pacificus)

Reptiles & Amphibians

  • Desert Tortoise (Gopherus agassizii)
  • Arroyo Toad (Anaxyrus californicus)
  • California Red-legged Frog (Rana draytonii)
  • Mountain Yellow-legged Frog (Rana muscosa)


  • Delhi Sands Flower-loving Fly (Rhaphiomidas terminatus abdominalis)
  • Quino Checkerspot Butterfly (Euphydryas editha quino)

Non-Agency-listed Sensitive Species

BBI staff also have extensive experience conducting surveys and analyzing potential project impacts for a large number of non-Agency-listed special status species throughout the State of California. These species include:


  • Golden Eagle (Aquila chrysaetos)
  • Northern Harrier (Circus cyaneus)
  • Northern Goshawk (Accipiter gentilis)
  • Burrowing Owl (Athene cunicularia)
  • California Spotted Owl (Strix occidentalis occidentalis)
  • Long-eared Owl (Asio otus)
  • Short-eared Owl (Asio flammeus)
  • Loggerhead Shrike (Lanius ludovicianus)
  • Cactus Wren (Campylorhynchus brunneicapillus)


  • San Diego Desert Woodrat (Neotoma lepida intermedia)
  • Los Angeles Pocket Mouse (Perognathus longimembris brevinasus)
  • Ringtail (Bassariscus astutus)
  • American Badger (Taxidea taxus)
  • Bighorn Sheep (Ovis canadensis)
  • Bats

Reptiles & Amphibians

  • Coast Range Newt (Taricha torosa torosa)
  • Western Spadefoot Toad (Spea hammondii)
  • Western Pond Turtle (Actinemys marmorata)
  • Orange-throated Whiptail (Aspidoscelis hyperythra)
  • California Legless Lizard (Anniella pulchra)
  • Coast Horned Lizard (Phrynosoma coronatum)
  • Flat-tailed Horned Lizard (Phrynosoma mcallii)
  • Mountain Kingsnake (Lampropeltis zonata)
  • Two-striped Garter Snake (Thamnophis hammondii)
  • South Coast Garter Snake (Thamnophis sirtalis infernalis)
  • Southern Rubber Boa (Charina umbratica)