Wildlife

Lazuli Bunting

The wildlife on Hopper Mountain NWR is very diverse and unique to southern California.


Twenty-four mammal species have been documented on the refuge, including coyote (Canis latrans), bobcat (Lynx rufus), mountain lion (Puma concolor), mule deer (Odocoileus hemionus), black bear (Ursus americanus), big brown bat (Eptesicus fuscus), and Pacific kangaroo rat (Dipodomys agilis).

 
A total of 103 bird species have been recorded on or near the refuge. Some of the more common resident birds of the area include the black phoebe (Sayornis nigricans), western scrubjay (Aphelocaoma californica), California quail (Callipepla californica), mourning dove (Zenaida macroura), and canyon wren (Catherpes mexicanus). Aside from the California condor, common raptors include the great horned owl (Bubo virginianus), golden eagle (Aquila chrysaetos), and red tailed hawk (Buteo jamaicensis) (USFWS 2002a). 

 Western Toad 
Three amphibian species have been documented on Hopper Mountain NWR, including Baja California treefrog (Pseudacris hypochondriaca) (formerly recognized as P. regilla), California treefrog (Pseudacris cadaverina), and southern California toad (Anaxyrus boreas halophilus).

CA Whiptail
 
Fifteen reptile species have been observed on Hopper Mountain NWR: tiger whiptail (Aspidoscelis tigris), southern alligator lizard (Elgaria multicarinata), western skink (Plestiodon skiltonianus skiltonianus), Blainville’s horned lizard (Phrynosoma blainvillii), western fence lizard (Sceloporus occidentalis), common sideblotched lizard (Uta stansburiana), southern Pacific rattlesnake (Crotalus oregonanus helleri), ring-necked snake (Diadophis punctatus), coast night-snake (Hypsiglena ochrorhyncha), California kingsnake (Lampropeltis getula californiae), San Diego gopher snake (Pituophis catenifer annectens), western patch-nosed snake (Salvadora hexalepis), western black-headed snake (Tantilla planiceps), gartersnake (Thamnophis sp.), and Western pond turtle (Actinemys marmorata) (USFWS 2002a). 

 

Threatened and Endangered plants and animals:

 
Threatened or endangered plants that have been known to occur on the refuge include: Round-leaved filaree, San Fernando valley spineflower, slender-horned spineflower, Conejo dudleya, Ross’s pitcher-sage, California Orcutt grass, Lyon’s pentachaeta, Nuttall’s scrub oak, and Greata’s aster.
A species list of federally-listed, proposed, and candidate species from the Service’s Ventura Fish and Wildlife Office that may occur in the vicinity of Hopper Mountain NWR includes: California condor (endangered, designated critical habitat), coastal California gnatcatcher (Polioptila californica californica, threatened, designated critical habitat), California red-legged frog (Rana draytonii, threatened), Least Bell’s vireo (Vireo bellii pusillus, endangered), and southwestern willow flycatcher (Empidonax traillii extimus, endangered, designated critical habitat). 

CAGN
 
The California condor is the only federally-listed species known to occur on Hopper Mountain NWR.
Although there is coastal sage scrub habitat, the threatened California gnatcatcher has not been documented at the refuge. Surveys would be needed to determine if the California red-legged frog is present on the refuge. Based on their range and lack of habitat, the Least Bell’s vireo and southwestern willow flycatcher are not expected to occur on the refuge. 
State-listed wildlife that occur on Hopper Mountain are: bald eagle (Halianeetus leucocephalus, endangered) and Swainson’s hawk (Buteo swainsoni, threatened). The golden eagle (Aquila chrysaetos), which is listed as a fully protected species in California, and the western burrowing owl (Athene cunicularia hypugaea), designated by the CDFW as a California Species of Special Concern, occur on Hopper Mountain NWR. Oak titmouse (Baeolophus inornatus) is a Partners in Flight priority bird. They are not state-listed species.