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Area: 75 Acres
Lat: 35.062882
Lon: 120.625076
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Top Banner Photo Credits
Julie MacKinnon
Anthony Brewer
Arav Karighattam
Patrick Jarrett
Ken Howard
Hayley Crews
DeAtley Cahill

Species found at Viewing Site

Oceano Dunes State Vehicular Recreation Area, Oso Flaco Lake Natural Area  - Site # 298

American Bittern at Sacramento NWR. Photo by Carole Haskell American Bittern at Gray Lodge Wildlife Area. Photo by James Simon.
Species:American Bittern
Seen:Yes
Locations:oso flaco lake edge
Present Season:Yr
Season View:Yr
Reliable:Poor

Species:American Coot
Seen:Yes
Locations:oso flaco lake
Present Season:Yr
Season View:Yr
Reliable:Excellent

Species:American Goldfinch
Seen:Yes
Locations:willow riparian near Oso Flaco lake
Present Season:Yr
Season View:Yr
Reliable:Poor

American White Pelicans at Ahjumawi Lava Springs State Park. Photo by Jim Duckworth American White Pelicans at Anderson Marsh Natural Preserve. Photo by Harvey Abernathey Pelicans at Elkhorn Slough. Photo by Jim Duckworth
Species:American White Pelican
Seen:Yes
Locations:oso flaco lake
Present Season:Yr
Season View:W,Sp,F
Reliable:Poor

Species:Anna's Hummingbird
Seen:Yes
Locations:riparian area near parking lot, near boardwalk west of lake
Present Season:Yr
Season View:Yr
Reliable:Excellent

Species:Black Phoebe
Seen:Yes
Locations:at parking lot area, near lake edge
Present Season:Yr
Season View:Yr
Reliable:Excellent

Species:Black-Bellied Plover
Seen:Yes
Locations:shoreline
Present Season:Yr
Season View:W,Sp,F
Reliable:Poor

Brown Pelican at Abbots Lagoon, Point Reyes National Seashore. Photo by Harvey Abernathey Brown Pelican. Photo by Max Allen
Species:Brown Pelican
Seen:Yes
Locations:beach shore, Oso Flaco Creek mouth
Present Season:Yr
Season View:Yr
Reliable:Good

Species:Brush Rabbit
Seen:Yes
Locations:on trail in mornings between parking lot and lake, also may run out of dune scrub habitat between west of lake
Present Season:Yr
Season View:Yr
Reliable:Good

Species:Bufflehead
Seen:Yes
Locations:oso flaco lake
Present Season:W,Sp
Season View:W,Sp
Reliable:Good

Species:Bullfrog
Seen:No
Locations:Oso Flaco Lake
Present Season:Yr
Season View:Yr
Reliable:Poor

Species:California Legless Lizard
Seen:No
Locations:sand dunes (silvery leggless lizard)
Present Season:Yr
Season View:Yr
Reliable:Poor

Species:California Legless Lizard
Seen:No
Locations:sand dunes (silvery legless lizard)
Present Season:Yr
Season View:Yr
Reliable:Poor

Quail pair at Clear Lake. Photo by Scott Banales Quail and chicks at Golden Gate NRA. Photo by Jessican Weinberg
Species:California Quail
Seen:Yes
Locations:on boardwalk between lake and beach
Present Season:Yr
Season View:Yr
Reliable:Good

Species:Caspian Tern
Seen:Yes
Locations:beach, flying near ocean
Present Season:Yr
Season View:Sp,Su
Reliable:Good

Cinnamon Teal Drakes at Sacramento NWR. Photo by Phil Robertson Cinnamon Teal at Sacramento NWR. Photo by Claire Ames
Species:Cinnamon Teal
Seen:Yes
Locations:oso flaco lake
Present Season:Yr
Season View:Sp
Reliable:Good

Double-crested Cormorant. Photo by Doug Froning
Species:Double-Crested Cormorant
Seen:Yes
Locations:wood platforms within oso flaco lake
Present Season:Yr
Season View:Yr
Reliable:Excellent

Species:Eared Grebe
Seen:Yes
Locations:oso flaco lake
Present Season:W,Sp,F
Season View:W,F
Reliable:Poor

Species:Forster's Tern
Seen:Yes
Locations:flying over Oso Flaco Lake
Present Season:Yr
Season View:W,Sp,F
Reliable:Good

Great Blue Heron Great Blue Heron at K-Dock. Photo by Terry Eckhart
Species:Great Blue Heron
Seen:Yes
Locations:oso flaco lake or within creek
Present Season:Yr
Season View:Yr
Reliable:Good

Immature Great Horned Owl at Grizzly Island. Photo by Jen Joynt
Species:Great Horned Owl
Seen:No
Locations:tracks can be seen in open sand dunes
Present Season:Yr
Season View:Yr
Reliable:Poor

Green Heron & Fish by Cathy Cooper
Species:Green Heron
Seen:Yes
Locations:edge of Oso Flaco Lake
Present Season:Yr
Season View:W,Sp,F
Reliable:Poor

Species:Heermann's Gull
Seen:Yes
Locations:beach
Present Season:Su,F
Season View:Su,F
Reliable:Excellent

Species:Least Tern
Seen:Yes
Locations:flying over Oso Flaco Lake
Present Season:Su
Season View:Su
Reliable:Good

Lesser Goldfinch and Dragonfly on fiddleneck flower. Photo by Harvey Abernathey
Species:Lesser Goldfinch
Seen:Yes
Locations:willow riparian between parking lot and lake
Present Season:Yr
Season View:Yr
Reliable:Good

Photo by Joe DeFao
Species:Long-Billed Curlew
Seen:Yes
Locations:beach
Present Season:Yr
Season View:W,Sp,F
Reliable:Good

Species:Mallard
Seen:Yes
Locations:oso flaco lake
Present Season:Yr
Season View:Yr
Reliable:Excellent

Species:Merriam's Kangaroo Rat
Seen:No
Locations:tracks in sand
Present Season:Yr
Season View:Yr
Reliable:Excellent

Northern Harrier hunting at Coyote Hills Regional Park. Photo by Janet Norris Northern Harrier. Photo by Jack Ferrante
Species:Northern Harrier
Seen:Yes
Locations:flying over lake or over dunes
Present Season:Yr
Season View:Yr
Reliable:Good

Northern Shoveler at Little Lake Overlook. Photo by Stephen Creswell Northern Shoveler at Sacramento NWR. Photo by Claire Ames
Species:Northern Shoveler
Seen:Yes
Locations:oso flaco lake
Present Season:W,F
Season View:W,F
Reliable:Good

Osprey and Red-tailed Hawk battle over Clear Lake Hitch. Photo by Lyle Madeson Osprey with fish at Clear Lake State Park. Photo by Bob McCleary USDA Forest Service Osprey at Ft. Collins
Species:Osprey
Seen:Yes
Locations:flying over lake
Present Season:Yr
Season View:Yr
Reliable:Poor

Peregrine Falcon Peregrine Falcon at Sacramento NWR. Photo by Phil Robertson
Species:Peregrine Falcon
Seen:Yes
Locations:flying near shoreline
Present Season:Yr
Season View:Yr
Reliable:Poor

Pied-Billed Grebe and chick. Photo by Cindy Tucey
Species:Pied-Billed Grebe
Seen:Yes
Locations:oso flaco lake
Present Season:Yr
Season View:Yr
Reliable:Excellent

Species:Pond Slider
Seen:Yes
Locations:oso flaco lake, lake edge or on log within lake
Present Season:Yr
Season View:Yr
Reliable:Good

Species:Red-Legged Frog
Seen:No
Locations:Oso Flaco Creek and riparian area
Present Season:W,Sp
Season View:W,Sp
Reliable:Poor

Species:Ring-Billed Gull
Seen:Yes
Locations:beach, Oso Flaco Creek mouth
Present Season:Yr
Season View:Yr
Reliable:Excellent

Male Ruddy Duck. Photo by Stephen Creswell
Species:Ruddy Duck
Seen:Yes
Locations:oso flaco lake
Present Season:Yr
Season View:Yr
Reliable:Excellent

Species:Sanderling
Seen:Yes
Locations:shoreline, beach
Present Season:Yr
Season View:Yr
Reliable:Excellent

Species:Say's Phoebe
Seen:Yes
Locations:fly catching near dune scrub and boardwalk, or at beach fly catching. may perch on posts.
Present Season:Yr
Season View:Yr
Reliable:Good

Snowy Plovers on the beach at Golden Gate NRA. Photo by Jessica Weinberg Snowy Plover on sand spit. Montana de Oro State Park
Species:Snowy Plover
Seen:Yes
Locations:beach
Present Season:Yr
Season View:Sp,Su
Reliable:Good

Species:Sooty Shearwater
Seen:Yes
Locations:flying in large numbers offshore of beach
Present Season:Su
Season View:Su
Reliable:Good

Sora, photo by Thomas Roach
Species:Sora
Seen:Yes
Locations:edge of Oso Flaco Lake
Present Season:Yr
Season View:W,Sp,F
Reliable:Good

Western Fence Lizard,Coyote Hills Regional Park, by Shana Flanagan Western Fence Lizard at Golden Gate NRA. Photo by Jessica Weinberg
Species:Western Fence Lizard
Seen:Yes
Locations:along boardwalk through dunes
Present Season:Yr
Season View:Yr
Reliable:Excellent

Western Grebe at Anderson Marsh. Photo by Harvey Abernathey Western Grebe at Clear Lake State Park. Photo by Harvey Abernathey
Species:Western Grebe
Seen:Yes
Locations:oso flaco lake
Present Season:Yr
Season View:W,Sp,F
Reliable:Good

Species:Western Gull
Seen:Yes
Locations:beach
Present Season:Yr
Season View:Yr
Reliable:Excellent

Pond Turtles at Clear Lake
Species:Western Pond Turtle
Seen:Yes
Locations:oso flaco lake, at edge or logs within lake
Present Season:Yr
Season View:Su
Reliable:Poor

Species:Whimbrel
Seen:Yes
Locations:beach
Present Season:Yr
Season View:Yr
Reliable:Good

Wood Duck. Photo by Doug Froning
Species:Wood Duck
Seen:Yes
Locations:oso flaco lake
Present Season:Yr
Season View:W
Reliable:Poor

Species:Wrentit
Seen:Yes
Locations:riparian near lake and dune scrub between lake and beach. will be heard more than seen.
Present Season:Yr
Season View:Yr
Reliable:Excellent