Westfork

Angeles National Forest · California · 4,407 acres · RoadlessArea Rule (2001)
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Observed Species (487)

Species with confirmed research-grade observation records from iNaturalist community science data.

Nevin's Barberry (1)
Berberis neviniiEndangered
Santa Ana Sucker (3)
Pantosteus santaanaeThreatened
Southern Mountain Yellow-legged Frog (4)
Rana muscosaEndangered
(6)
Phidippus adumbratus
(2)
Colonus hesperus
(2)
Kovarikia oxy
Acorn Woodpecker (18)
Melanerpes formicivorus
American Bird's-foot-trefoil (1)
Acmispon americanus
American Black Bear (8)
Ursus americanus
American Bullfrog (1)
Lithobates catesbeianus
American Century Plant (1)
Agave americana
American Coot (2)
Fulica americana
American Dipper (2)
Cinclus mexicanus
American Kestrel (8)
Falco sparverius
American Robin (8)
Turdus migratorius
Anna's Hummingbird (6)
Calypte anna
Annual Honesty (1)
Lunaria annua
Arboreal Salamander (1)
Aneides lugubris
Arroyo Willow (3)
Salix lasiolepis
Artemisia-leaf Pincushion (9)
Chaenactis artemisiifolia
Ash-throated Flycatcher (10)
Myiarchus cinerascens
Bald Eagle (22)
Haliaeetus leucocephalusDL
Band-tailed Pigeon (12)
Patagioenas fasciata
Beavertail Prickly-pear (1)
Opuntia basilaris
Bell's Vireo (1)
Vireo bellii
Belted Kingfisher (2)
Megaceryle alcyon
Bewick's Wren (1)
Thryomanes bewickii
Big-cone Douglas-fir (14)
Pseudotsuga macrocarpa
Big-pod Whitethorn (1)
Ceanothus megacarpus
Bigberry Manzanita (3)
Arctostaphylos glauca
Bighorn Sheep (5)
Ovis canadensis
Bigleaf Maple (10)
Acer macrophyllum
Bird's-foot Cliffbrake (4)
Pellaea mucronata
Bitter Gooseberry (3)
Ribes amarum
Black Cottonwood (6)
Populus trichocarpa
Black Phoebe (11)
Sayornis nigricans
Black Sage (3)
Salvia mellifera
Black-Bellied Slender Salamander (6)
Batrachoseps nigriventris
Black-chinned Hummingbird (1)
Archilochus alexandri
Black-headed Grosbeak (11)
Pheucticus melanocephalus
Black-tailed Jackrabbit (1)
Lepus californicus
Blue Field Gilia (5)
Gilia capitata
Blue Field Madder (1)
Sherardia arvensis
Blue-gray Gnatcatcher (1)
Polioptila caerulea
Bobcat (1)
Lynx rufus
Botta Clarkia (3)
Clarkia bottae
Box-elder (1)
Acer negundo
Branching Scorpionweed (3)
Phacelia ramosissima
Brazilian Free-tailed Bat (1)
Tadarida brasiliensis
Brewer's Sparrow (1)
Spizella breweri
Broadleaf Lupine (1)
Lupinus latifolius
Brook-pimpernel (1)
Veronica anagallis-aquatica
Brown Gardensnail (2)
Cornu aspersum
Brown Widow (1)
Latrodectus geometricus
Brown-headed Cowbird (2)
Molothrus ater
Brush Deermouse (1)
Peromyscus boylii
Bull Thistle (2)
Cirsium vulgare
Bullock's Oriole (6)
Icterus bullockii
Bur Chervil (5)
Anthriscus caucalis
Burlew's Onion (1)
Allium burlewii
Bushtit (6)
Psaltriparus minimus
Bushy Spikemoss (8)
Selaginella bigelovii
California Ash (2)
Fraxinus dipetala
California Bay (11)
Umbellularia californica
California Brickell-bush (10)
Brickellia californica
California Broomshrub (11)
Lepidospartum squamatum
California Buckwheat (28)
Eriogonum fasciculatum
California Chicory (1)
Rafinesquia californica
California Coffeeberry (5)
Frangula californica
California Cudweed (3)
Pseudognaphalium californicum
California Currant (1)
Ribes californicum
California Dodder (1)
Cuscuta californica
California Ebony Tarantula (9)
Aphonopelma eutylenum
California Figwort (4)
Scrophularia californica
California Ground Squirrel (18)
Otospermophilus beecheyi
California Gull (1)
Larus californicus
California Hedge-nettle (1)
Stachys bullata
California Indigobush (1)
Amorpha californica
California Juniper (1)
Juniperus californica
California Lace Fern (1)
Aspidotis californica
California Live Oak (9)
Quercus agrifolia
California Lyresnake (1)
Trimorphodon lyrophanes
California Newt (42)
Taricha torosa
California Polypody (13)
Polypodium californicum
California Poppy (4)
Eschscholzia californica
California Quail (3)
Callipepla californica
California Sage (7)
Salvia columbariae
California Sagebrush (6)
Artemisia californica
California Saxifrage (1)
Micranthes californica
California Scorpionweed (39)
Phacelia minor
California Scrub Jay (12)
Aphelocoma californica
California Suncup (4)
Eulobus californicus
California Sweet-cicely (2)
Osmorhiza brachypoda
California Swollenstinger Scorpion (2)
Anuroctonus pococki
California Sycamore (8)
Platanus racemosa
California Thrasher (2)
Toxostoma redivivum
California Toothwort (12)
Cardamine californica
California Towhee (13)
Melozone crissalis
California Trapdoor Spider (3)
Bothriocyrtum californicum
California Treefrog (64)
Pseudacris cadaverina
California Vole (1)
Microtus californicus
California Walnut (1)
Juglans californica
California asterella (7)
Calasterella californica
California common scorpion (4)
Paruroctonus silvestrii
Calyx-nose Monkeyflower (4)
Erythranthe nasuta
Camp Martin Paintbrush (4)
Castilleja martini
Canyon Bog Orchid (1)
Platanthera sparsiflora
Canyon Live Oak (9)
Quercus chrysolepis
Canyon Liveforever (46)
Dudleya cymosa
Canyon Wren (15)
Catherpes mexicanus
Cassin's Kingbird (5)
Tyrannus vociferans
Catchweed Bedstraw (5)
Galium aparine
Caterpillar Scorpionweed (27)
Phacelia cicutaria
Cavernous Crystalwort (3)
Riccia cavernosa
Chaparral Bushmallow (11)
Malacothamnus fasciculatus
Chaparral Currant (5)
Ribes malvaceum
Chaparral Snapdragon (6)
Sairocarpus coulterianus
Chaparral Whitethorn (6)
Ceanothus leucodermis
Cheatgrass (2)
Bromus tectorum
Chicory-leaf Wire-lettuce (6)
Stephanomeria cichoriacea
Clark's Grebe (1)
Aechmophorus clarkii
Cliff Desert-dandelion (9)
Malacothrix saxatilis
Cliff Swallow (2)
Petrochelidon pyrrhonota
Club-haired Mariposa Lily (4)
Calochortus clavatus
Coast Horned Lizard (4)
Phrynosoma blainvillii
Coast Mountain Kingsnake (10)
Lampropeltis multifasciata
Coast Night Snake (2)
Hypsiglena ochrorhynchus
Coast Range Melicgrass (1)
Melica imperfecta
Coast Range Triplet-lily (1)
Triteleia lugens
Coastal Woodfern (16)
Dryopteris arguta
Coffee Fern (19)
Pellaea andromedifolia
Common Carp (2)
Cyprinus carpio
Common Chamise (11)
Adenostoma fasciculatum
Common Chickweed (3)
Stellaria media
Common Dandelion (1)
Taraxacum officinale
Common Deadnettle (9)
Lamium amplexicaule
Common Eucrypta (1)
Eucrypta chrysanthemifolia
Common Fig (4)
Ficus carica
Common Goldenstar (9)
Bloomeria crocea
Common Horehound (2)
Marrubium vulgare
Common Merganser (1)
Mergus merganser
Common Monkeyflower (26)
Erythranthe guttata
Common Mullein (1)
Verbascum thapsus
Common Pacific Peavine (16)
Lathyrus vestitus
Common Pill-bug (3)
Armadillidium vulgare
Common Raven (11)
Corvus corax
Common Sand-aster (11)
Corethrogyne filaginifolia
Common Shepherd's Purse (2)
Capsella bursa-pastoris
Common Side-blotched Lizard (25)
Uta stansburiana
Common Sowthistle (1)
Sonchus oleraceus
Common Yarrow (14)
Achillea millefolium
Costa's Hummingbird (2)
Calypte costae
Cougar (4)
Puma concolor
Coulter's Pine (1)
Pinus coulteri
Coyote (1)
Canis latrans
Coyote Wildmint (1)
Monardella villosa
Creeping Woodsorrel (1)
Oxalis corniculata
Dark-eyed Junco (12)
Junco hyemalis
Davidson's Missionbells (7)
Fritillaria pinetorum
Decollate Snail (2)
Rumina decollata
Deerbrush (2)
Ceanothus integerrimus
Desert Cottontail (1)
Sylvilagus audubonii
Distant Scorpionweed (13)
Phacelia distans
Dock-leaf Smartweed (1)
Persicaria lapathifolia
Douglas' Horse-nettle (10)
Solanum douglasii
Douglas' Wood Beauty (3)
Drymocallis glandulosa
Douglas' Wormwood (12)
Artemisia douglasiana
Dragon Wormwood (5)
Artemisia dracunculus
Dudley's Clarkia (2)
Clarkia dudleyana
Dunn's Lobelia (11)
Palmerella debilis
Eastern Fox Squirrel (6)
Sciurus niger
Eastern Warbling-Vireo (2)
Vireo gilvus
Eastwood's Manzanita (5)
Arctostaphylos glandulosa
Elegant Rockcress (8)
Boechera californica
English Ivy (1)
Hedera helix
Ensatina (2)
Ensatina eschscholtzii
Eurasian Collared-Dove (1)
Streptopelia decaocto
Eyelash cups (1)
Scutellinia
Fall Thistle (2)
Cirsium occidentale
Flat-spine Bursage (1)
Ambrosia acanthicarpa
Floriferous Monkeyflower (5)
Erythranthe floribunda
Foothill Beardtongue (2)
Penstemon heterophyllus
Fourleaf Manyseed (1)
Polycarpon tetraphyllum
Fragile Fern (2)
Cystopteris fragilis
Fragrant Pitcher-sage (3)
Lepechinia fragrans
Fragrant Sumac (1)
Rhus aromatica
Fremont Cottonwood (2)
Populus fremontii
Frost's Crystalwort (1)
Riccia frostii
Fuchsia-flower Gooseberry (1)
Ribes speciosum
Garden-pot Marigold (1)
Calendula officinalis
Giant Blazingstar (1)
Mentzelia laevicaulis
Giant Canyon Woodlouse (3)
Porcellio dilatatus
Giant Chainfern (3)
Woodwardia fimbriata
Giant Helleborine (1)
Epipactis gigantea
Giant Pinedrops (1)
Pterospora andromedea
Giant Reed (2)
Arundo donax
Glistening Inky Cap (1)
Coprinellus micaceus
Gold Poppy (12)
Eschscholzia caespitosa
Goldback Fern (18)
Pentagramma triangularis
Golden Ear-drops (29)
Ehrendorferia chrysantha
Golden-crowned Sparrow (5)
Zonotrichia atricapilla
Gophersnake (16)
Pituophis catenifer
Grassy Tarweed (2)
Madia gracilis
Gray Fox (14)
Urocyon cinereoargenteus
Great Blue Heron (13)
Ardea herodias
Great Brome (2)
Bromus diandrus
Great Egret (5)
Ardea alba
Greata's Aster (4)
Symphyotrichum greatae
Green Lynx Spider (4)
Peucetia viridans
Green Mormon-tea (1)
Ephedra viridis
Green-winged Teal (1)
Anas crecca
Grinnell's Beardtongue (1)
Penstemon grinnellii
Hairy Curtain Crust (1)
Stereum hirsutum
Hairy Tufted Jumping Spider (1)
Phidippus comatus
Hairy Whitethorn (3)
Ceanothus oliganthus
Hairy Willowherb (4)
Epilobium ciliatum
Hairy Woodpecker (10)
Leuconotopicus villosus
Hairy Yerba Santa (18)
Eriodictyon trichocalyx
Heartleaf Beardtongue (8)
Keckiella cordifolia
Hermit Thrush (1)
Catharus guttatus
Hoary Rock-rose (1)
Cistus creticus
Hollyleaf Cherry (19)
Prunus ilicifolia
Hollyleaf Redberry (4)
Rhamnus ilicifolia
Hooded Oriole (2)
Icterus cucullatus
Hooker's Evening-primrose (5)
Oenothera elata
House Centipede (1)
Scutigera coleoptrata
House Finch (25)
Haemorhous mexicanus
House Sparrow (12)
Passer domesticus
Humboldt Lily (1)
Lilium humboldtii
Hummingbird-trumpet (31)
Epilobium canum
Hutton's Vireo (4)
Vireo huttoni
Imbricate Scorpionweed (5)
Phacelia imbricata
Incense Cedar (1)
Calocedrus decurrens
Island False Bindweed (1)
Calystegia macrostegia
Italian Thistle (1)
Carduus pycnocephalus
Johnson's Tufted Jumping Spider (1)
Phidippus johnsoni
Jordan's Maidenhair Fern (1)
Adiantum jordanii
Kennedy's Buckwheat (2)
Eriogonum kennedyi
Lanceleaf Live-forever (47)
Dudleya lanceolata
Large-flower Scorpionweed (15)
Phacelia grandiflora
Largeleaf Periwinkle (1)
Vinca major
Laurel Sumac (7)
Malosma laurina
Lawrence's Goldfinch (13)
Spinus lawrencei
Lazuli Bunting (9)
Passerina amoena
Leafy Fleabane (3)
Erigeron foliosus
Leafy Pondweed (1)
Potamogeton foliosus
Leather Oak (8)
Quercus durata
Lemmon's Catchfly (2)
Silene lemmonii
Lemon Lily (28)
Lilium parryi
Lemonade Sumac (1)
Rhus integrifolia
Lesser Goldfinch (22)
Spinus psaltria
Lincoln's Sparrow (3)
Melospiza lincolnii
Lindley's Lupine (1)
Lupinus bicolor
Long-beak Heron's-bill (1)
Erodium botrys
Long-stalked Phacelia (4)
Phacelia longipes
Longstem Buckwheat (12)
Eriogonum elongatum
Magpie Inky Cap (1)
Coprinopsis picacea
Mallard (15)
Anas platyrhynchos
Maltese Star-thistle (2)
Centaurea melitensis
Meadow Slug (3)
Deroceras laeve
Mediterranean Mustard (1)
Hirschfeldia incana
Menzies' Baby-blue-eyes (29)
Nemophila menziesii
Mexican Catchfly (16)
Silene laciniata
Miner's-lettuce (22)
Claytonia perfoliata
Mohave Lupine (1)
Lupinus sparsiflorus
Mountain Chickadee (2)
Poecile gambeli
Mountain Quail (2)
Oreortyx pictus
Mountain-mahogany (11)
Cercocarpus betuloides
Mourning Dove (18)
Zenaida macroura
Mouse Barley (1)
Hordeum murinum
Mule Deer (12)
Odocoileus hemionus
Narrowleaf Bedstraw (2)
Galium angustifolium
Narrowleaf Milkweed (12)
Asclepias fascicularis
Narrowleaf Swordfern (5)
Polystichum imbricans
Nevin's Brickell-bush (2)
Brickellia nevinii
New Mexico Thistle (2)
Cirsium neomexicanum
Nipple-seed Plantain (1)
Plantago major
Noble False Widow (2)
Steatoda nobilis
Northern Flicker (11)
Colaptes auratus
Northern Hoary Bat (1)
Lasiurus cinereus
Northern House Wren (28)
Troglodytes aedon
Northern Mockingbird (13)
Mimus polyglottos
Northern Pygmy-Owl (4)
Glaucidium gnoma
Northern Rough-winged Swallow (1)
Stelgidopteryx serripennis
Northern Yellow Warbler (15)
Setophaga aestiva
Nuttall's Annual Lupine (2)
Lupinus truncatus
Nuttall's Woodpecker (8)
Dryobates nuttallii
Oak Titmouse (3)
Baeolophus inornatus
Old-Man-in-the-Spring (1)
Senecio vulgaris
Olive-sided Flycatcher (3)
Contopus cooperi
Orange-crowned Warbler (3)
Leiothlypis celata
Oregon Ash (1)
Fraxinus latifolia
Oregon Bitterroot (1)
Lewisia rediviva
Orobus-seed Liverwort (5)
Targionia hypophylla
Oyster Mushroom (2)
Pleurotus ostreatus
Pacific Harvestman (3)
Leuronychus pacificus
Pacific Stonecrop (7)
Sedum spathulifolium
Pacific Trailing Blackberry (11)
Rubus ursinus
Pacific Treefrog (2)
Pseudacris regilla
Palmer's Goldenweed (1)
Ericameria palmeri
Palmer's Mariposa Lily (4)
Calochortus palmeri
Parish's Goldenweed (2)
Ericameria parishii
Parish's Oxytheca (2)
Acanthoscyphus parishii
Pauma Bush Lupine (2)
Lupinus longifolius
Peirson's Lupine (6)
Lupinus peirsonii
Peregrine Falcon (1)
Falco peregrinus
Perennial Pea (1)
Lathyrus latifolius
Petty Spurge (1)
Euphorbia peplus
Phainopepla (2)
Phainopepla nitens
Pin Clover (4)
Erodium cicutarium
Pin-tailed Whydah (1)
Vidua macroura
Pine Goldenweed (1)
Ericameria pinifolia
Pine Green-gentian (5)
Frasera neglecta
Pineapple-weed Chamomile (3)
Matricaria discoidea
Pink False Gilia (1)
Allophyllum divaricatum
Pipestem Virgin's-bower (3)
Clematis lasiantha
Plains Agrocybe (2)
Agrocybe pediades
Plummer's Mariposa Lily (16)
Calochortus plummerae
Poodle-dog Bush (17)
Eriodictyon parryi
Prickly Lettuce (2)
Lactuca serriola
Prickly Phlox (13)
Linanthus californicus
Puncture-vine (2)
Tribulus terrestris
Purple Finch (2)
Haemorhous purpureus
Purple Nightshade (5)
Solanum xanti
Purple-and-white Blue-eyed Mary (17)
Collinsia heterophylla
Raccoon (2)
Procyon lotor
Rainbow Trout or Steelhead (13)
Oncorhynchus mykiss
Ramona Clarkia (1)
Clarkia similis
Red Swamp Crawfish (1)
Procambarus clarkii
Red-crowned Amazon (12)
Amazona viridigenalis
Red-masked Parakeet (15)
Psittacara erythrogenys
Red-shouldered Hawk (2)
Buteo lineatus
Red-tailed Hawk (15)
Buteo jamaicensis
Redberry Buckthorn (2)
Rhamnus crocea
Ring-necked Snake (1)
Diadophis punctatus
Rock Wren (2)
Salpinctes obsoletus
Rose Clover (7)
Trifolium hirtum
Rosy Boa (3)
Lichanura orcutti
Rough Cocklebur (1)
Xanthium strumarium
Roundleaf Boykinia (13)
Boykinia rotundifolia
Ruby-crowned Kinglet (6)
Corthylio calendula
Rydberg's Horkelia (1)
Horkelia rydbergii
San Francisco Broomrape (2)
Aphyllon franciscanum
San Gabriel Chestnut (4)
Glyptostoma gabrielense
San Gabriel Linanthus (9)
Linanthus concinnus
San Gabriel Mountains Dudleya (16)
Dudleya densiflora
Sand Pygmyweed (1)
Crassula connata
Santa Ana Speckled Dace (9)
Rhinichthys gabrielinoProposed Threatened
Santa Barbara Honeysuckle (5)
Lonicera subspicata
Savannah Sparrow (1)
Passerculus sandwichensis
Sawtooth Bristleweed (1)
Hazardia squarrosa
Scarlet Bugler (1)
Penstemon centranthifolius
Scarlet Larkspur (17)
Delphinium cardinale
Scarlet Monkeyflower (16)
Erythranthe cardinalis
Sea Goldenstar (5)
Muilla maritima
Seaside Heliotrope (1)
Heliotropium curassavicum
Sessile-flower False Goldenaster (4)
Heterotheca sessiliflora
Short-lobe Scorpionweed (22)
Phacelia brachyloba
Shortleaf Combseed (1)
Pectocarya penicillata
Shovel-headed Garden Worm (1)
Bipalium kewense
Showy Beardtongue (21)
Penstemon spectabilis
Showy Tarweed (1)
Madia elegans
Silver Bird's-foot-trefoil (2)
Acmispon argophyllus
Silver Garden Orbweaver (2)
Argiope argentata
Slender Oat (1)
Avena barbata
Slender Sunflower (2)
Helianthus gracilentus
Slotted Lancetooth (2)
Haplotrema caelatum
Small-flower Catchfly (4)
Silene gallica
Small-flower Fiddleneck (1)
Amsinckia menziesii
Small-flower Stickleaf (3)
Mentzelia micrantha
Smilo Grass (4)
Oloptum miliaceum
Smooth Cat's-ear (1)
Hypochaeris glabra
Snowplant (4)
Sarcodes sanguinea
Snowy Egret (1)
Egretta thula
Song Sparrow (9)
Melospiza melodia
Southern Alligator Lizard (21)
Elgaria multicarinata
Southern Brassbuttons (4)
Cotula australis
Southern Bush-monkeyflower (24)
Diplacus longiflorus
Southern Hawkweed (1)
Hieracium argutum
Southern Maidenhair Fern (15)
Adiantum capillus-veneris
Southern Monardella (1)
Monardella australis
Southern Silktassel (1)
Garrya veatchii
Southwestern Pond Turtle (5)
Actinemys pallidaProposed Threatened
Spanish Broom (7)
Spartium junceum
Spearleaf False Dandelion (1)
Agoseris retrorsa
Splitgill (4)
Schizophyllum commune
Spotted Sandpiper (2)
Actitis macularius
Spotted Spurge (1)
Euphorbia maculata
Spotted Towhee (8)
Pipilo maculatus
Spring Draba (1)
Draba verna
Springtime Amanita (1)
Amanita velosa
Star-capped Coprinus (1)
Coprinus calyptratus
Steller's Jay (7)
Cyanocitta stelleri
Sticky Brown-stain Blue-eyed Mary (1)
Collinsia tinctoria
Sticky False Gilia (3)
Allophyllum glutinosum
Sticky Thorough-wort (14)
Ageratina adenophora
Stiff Birds-beak (2)
Cordylanthus rigidus
Stinging Lupine (4)
Lupinus hirsutissimus
Stretch Spiders (1)
Tetragnatha
Strigose Trefoil (1)
Acmispon strigosus
Striped Racer (7)
Masticophis lateralis
Sugar Sumac (5)
Rhus ovata
Sulphur-flower Buckwheat (8)
Eriogonum umbellatum
Swainson's Thrush (1)
Catharus ustulatus
Tall Silky Lupine (18)
Lupinus elatus
Tall White Bog Orchid (2)
Platanthera dilatata
Tehachapi Bushmallow (1)
Malacothamnus orbiculatus
Tehachapi Ragwort (7)
Packera ionophylla
Thickleaf Bird's-foot-trefoil (3)
Hosackia crassifolia
Thickleaf Yerba Santa (3)
Eriodictyon crassifolium
Threadleaf Ragwort (14)
Senecio flaccidus
Tiger Whiptail (12)
Aspidoscelis tigris
Townsend's Solitaire (1)
Myadestes townsendi
Toyon (16)
Heteromeles arbutifolia
Tree Swallow (2)
Tachycineta bicolor
Tree Tobacco (7)
Nicotiana glauca
Turkey Tail (13)
Trametes versicolor
Turkey Vulture (4)
Cathartes aura
Two-striped Gartersnake (3)
Thamnophis hammondii
Upright Pepper-grass (1)
Lepidium strictum
Velvet Ash (1)
Fraxinus velutina
Violet-green Swallow (1)
Tachycineta thalassina
Virgate Wire-lettuce (1)
Stephanomeria virgata
Wand Mullein (25)
Verbascum virgatum
Watercress (2)
Nasturtium officinale
Wavyleaf Soap-plant (3)
Chlorogalum pomeridianum
Wedgeleaf Drymocallis (2)
Drymocallis cuneifolia
Western Bird's-foot-trefoil (2)
Acmispon glaber
Western Black Widow Spider (1)
Latrodectus hesperus
Western Black-legged Tick (1)
Ixodes pacificus
Western Bluebird (2)
Sialia mexicana
Western Columbine (19)
Aquilegia formosa
Western Fence Lizard (79)
Sceloporus occidentalis
Western Flycatcher (18)
Empidonax difficilis
Western Gray Squirrel (14)
Sciurus griseus
Western Patch-nosed Snake (2)
Salvadora hexalepis
Western Poison-oak (22)
Toxicodendron diversilobum
Western Poppy (5)
Papaver californicum
Western Rattlesnake (41)
Crotalus oreganus
Western Screech-Owl (2)
Megascops kennicottii
Western Skink (2)
Plestiodon skiltonianus
Western Tanager (12)
Piranga ludoviciana
Western Toad (2)
Anaxyrus boreas
Western Wallflower (1)
Erysimum capitatum
Western Wood-Pewee (14)
Contopus sordidulus
Western spotted orbweaver (2)
Neoscona oaxacensis
White Alder (15)
Alnus rhombifolia
White Evening-primrose (1)
Oenothera speciosa
White Mariposa Lily (1)
Calochortus albus
White Sage (15)
Salvia apiana
White-breasted Nuthatch (1)
Sitta carolinensis
White-crowned Sparrow (6)
Zonotrichia leucophrys
White-flower Currant (10)
Ribes indecorum
White-stem Hedge-nettle (3)
Stachys albens
White-throated Swift (2)
Aeronautes saxatalis
Wide-throat Yellow Monkeyflower (18)
Diplacus brevipes
Willow Dock (1)
Rumex salicifolius
Willowleaf False Willow (11)
Baccharis salicifolia
Winecup Clarkia (5)
Clarkia purpurea
Winter Vetch (5)
Vicia villosa
Withered Snapdragon (19)
Sairocarpus multiflorus
Woodland Pterostegia (2)
Pterostegia drymarioides
Woolly Indian-paintbrush (2)
Castilleja foliolosa
Woolly Inky Cap (1)
Coprinellus flocculosus
Woolly Mountain-parsley (12)
Oreonana vestita
Wrentit (5)
Chamaea fasciata
Yard Knotweed (2)
Polygonum aviculare
Yellow Dung Mushroom (5)
Bolbitius titubans
Yellow Pincushion (6)
Chaenactis glabriuscula
Yellow Star-thistle (1)
Centaurea solstitialis
Yellow Whispering-bells (11)
Emmenanthe penduliflora
Yellow-rumped Warbler (15)
Setophaga coronata
Yellow-yarrow (25)
Eriophyllum confertiflorum
Zigzag Larkspur (2)
Delphinium patens
a fungus (3)
Omphalotus olivascens
a fungus (2)
Puccinia monoica
a fungus (4)
Psathyrella longipes
a fungus (2)
Marasmius plicatulus
a fungus (2)
Leratiomyces percevalii
a fungus (2)
Chondrostereum purpureum
blue dicks (17)
Dipterostemon capitatus
turkey mullein (2)
Croton setiger
Federally Listed Species (14)

Species identified by the U.S. Fish and Wildlife Service as potentially occurring within this area based on range and habitat data. These designations do not indicate confirmed presence — they identify habitat where agency actions may require consultation under the Endangered Species Act.

Braunton's Milkvetch
Astragalus brauntoniiEndangered
Coastal California Gnatcatcher
Polioptila californica californicaThreatened
Least Bell's Vireo
Vireo bellii pusillusEndangered
Nevin's Barberry
Berberis neviniiEndangered
Slender-horned Spineflower
Dodecahema leptocerasEndangered
Southwestern Willow Flycatcher
Empidonax traillii extimusEndangered
California Condor
Gymnogyps californianusE, XN
California Spotted Owl
Strix occidentalis occidentalis
Monarch
Danaus plexippusProposed Threatened
Santa Ana Speckled Dace
Rhinichthys gabrielinoProposed Threatened
Southwestern Pond Turtle
Actinemys pallidaProposed Threatened
Western Spadefoot
Spea hammondiiProposed Threatened
Other Species of Concern (22)

Species identified by the U.S. Fish and Wildlife Service as potentially occurring based on range and habitat data.

Allen's Hummingbird
Selasphorus sasin
Bald Eagle
Haliaeetus leucocephalus
Belding's Savannah Sparrow
Passerculus sandwichensis beldingi
Black Swift
Cypseloides niger
Black-chinned Sparrow
Spizella atrogularis
Bullock's Oriole
Icterus bullockii
California Gull
Larus californicus
California Thrasher
Toxostoma redivivum
Cassin's Finch
Haemorhous cassinii
Channel Island Song Sparrow
Melospiza melodia graminea
Golden Eagle
Aquila chrysaetos
Lawrence's Goldfinch
Spinus lawrencei
Northern Harrier
Circus hudsonius
Nuttall's Woodpecker
Dryobates nuttallii
Oak Titmouse
Baeolophus inornatus
Olive-sided Flycatcher
Contopus cooperi
Saltmarsh Common Yellowthroat
Geothlypis trichas sinuosa
Western Grebe
Aechmophorus occidentalis
Western Screech-Owl
Megascops kennicottii cardonensis
White-headed Woodpecker
Dryobates albolarvatus gravirostris
Wrentit
Chamaea fasciata
Migratory Birds of Conservation Concern (20)

Birds of conservation concern identified by the U.S. Fish and Wildlife Service as potentially occurring based on range data. These species may warrant additional consideration under the Migratory Bird Treaty Act.

Allen's Hummingbird
Selasphorus sasin
Bald Eagle
Haliaeetus leucocephalus
Black Swift
Cypseloides niger
Black-chinned Sparrow
Spizella atrogularis
Bullock's Oriole
Icterus bullockii
California Gull
Larus californicus
California Thrasher
Toxostoma redivivum
Cassin's Finch
Haemorhous cassinii
Common Yellowthroat
Geothlypis trichas
Golden Eagle
Aquila chrysaetos
Lawrence's Goldfinch
Spinus lawrencei
Oak Titmouse
Baeolophus inornatus
Olive-sided Flycatcher
Contopus cooperi
Savannah Sparrow
Passerculus sandwichensis
Song Sparrow
Melospiza melodia
Spotted Owl
Strix occidentalis
Western Grebe
Aechmophorus occidentalis
Western Screech-Owl
Megascops kennicottii
Wrentit
Chamaea fasciata
Vegetation (7)

Composition from LANDFIRE 2024 EVT spatial analysis. Ecosystems classified per NatureServe Terrestrial Ecological Systems.

California Chaparral
Shrub / Shrubland · 691 ha
GNR38.8%
GNR31.3%
GNR6.6%
California Ruderal Grassland and Meadow
Herb / Exotic Herbaceous · 79 ha
4.4%
GNR2.2%
California Valley and Coastal Grassland
Herb / Grassland · 24 ha
GNR1.4%

Westfork

Westfork Roadless Area

Angeles National Forest, California · 4,407 acres