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Bird Observations

Date Range:
Jan-Dec, 1900-2024

Thief Valley Reservoir (Union Co.)

Updated ~39 hr(s) ago.

223 species (+42 other taxa) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Snow Goose
Ross's Goose
Greater White-fronted Goose
Cackling Goose
Canada Goose
Trumpeter Swan
Tundra Swan
Wood Duck
Blue-winged Teal
Cinnamon Teal
Blue-winged x Cinnamon Teal (hybrid)
Blue-winged/Cinnamon Teal
Northern Shoveler
Gadwall
Eurasian Wigeon
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
American Wigeon
Mallard
Northern Pintail
Green-winged Teal
teal sp.
dabbling duck sp.
Canvasback
Redhead
Ring-necked Duck
Greater Scaup
Lesser Scaup
Greater/Lesser Scaup
Aythya sp.
Surf Scoter
Long-tailed Duck
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Bufflehead
Common Goldeneye
Barrow's Goldeneye
Common/Barrow's Goldeneye
Hooded Merganser
Common Merganser
Red-breasted Merganser
Ruddy Duck
duck sp.
waterfowl sp.
California Quail
Greater Sage-Grouse
Dusky Grouse
Gray Partridge
Ring-necked Pheasant
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Chukar
Pied-billed Grebe
Horned Grebe
Red-necked Grebe
Eared Grebe
Horned/Eared Grebe
Western Grebe
Clark's Grebe
Western/Clark's Grebe
grebe sp.
Rock Pigeon
Eurasian Collared-Dove
Mourning Dove
Common Nighthawk
Common Poorwill
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Vaux's Swift
Black-chinned Hummingbird
Calliope Hummingbird
Rufous Hummingbird
hummingbird sp.
Virginia Rail
Sora
American Coot
Sandhill Crane
Black-necked Stilt
American Avocet
Black-bellied Plover
Killdeer
Semipalmated Plover
Long-billed Curlew
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Marbled Godwit
Long-billed Dowitcher
Short-billed/Long-billed Dowitcher
Wilson's Snipe
Wilson's Phalarope
Red-necked Phalarope
phalarope sp.
Spotted Sandpiper
Solitary Sandpiper
Lesser Yellowlegs
Willet
Greater Yellowlegs
Lesser/Greater Yellowlegs
Stilt Sandpiper
Sanderling
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Dunlin
Baird's Sandpiper
Least Sandpiper
Pectoral Sandpiper
Western Sandpiper
Semipalmated Sandpiper
peep sp.
shorebird sp.
Sabine's Gull
Bonaparte's Gull
Franklin's Gull
Ring-billed Gull
Herring Gull
California Gull
Larus sp.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
gull sp.
Caspian Tern
Black Tern
Forster's Tern
Common Tern
Common Loon
loon sp.
Double-crested Cormorant
American White Pelican
Black-crowned Night Heron
Great Egret
Great Blue Heron
Turkey Vulture
Osprey
Golden Eagle
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Northern Harrier
Sharp-shinned Hawk
Cooper's Hawk
Accipiter sp.
Bald Eagle
Swainson's Hawk
Red-tailed Hawk
Rough-legged Hawk
Ferruginous Hawk
Buteo sp.
Barn Owl
Western Screech-Owl
Great Horned Owl
Burrowing Owl
owl sp.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Belted Kingfisher
Red-naped Sapsucker
Lewis's Woodpecker
Downy Woodpecker
Hairy Woodpecker
Downy/Hairy Woodpecker
Northern Flicker
woodpecker sp.
American Kestrel
Merlin
Peregrine Falcon
Prairie Falcon
large falcon sp.
diurnal raptor sp.
Olive-sided Flycatcher
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Western Wood-Pewee
Willow Flycatcher
Least Flycatcher
Hammond's Flycatcher
Gray Flycatcher
Dusky Flycatcher
Gray/Dusky Flycatcher
Western Flycatcher
Empidonax sp.
Say's Phoebe
Ash-throated Flycatcher
Western Kingbird
Eastern Kingbird
Scissor-tailed Flycatcher
Cassin's Vireo
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Warbling Vireo
Red-eyed Vireo
Loggerhead Shrike
Northern Shrike
Loggerhead/Northern Shrike
Steller's Jay
Black-billed Magpie
American Crow
Common Raven
Black-capped Chickadee
Mountain Chickadee
Horned Lark
Bank Swallow
Tree Swallow
Violet-green Swallow
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Tree/Violet-green Swallow
Northern Rough-winged Swallow
Barn Swallow
Cliff Swallow
swallow sp.
Ruby-crowned Kinglet
Golden-crowned Kinglet
White-breasted Nuthatch
Red-breasted Nuthatch
Brown Creeper
Rock Wren
Canyon Wren
House Wren
Pacific Wren
Marsh Wren
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Bewick's Wren
European Starling
Gray Catbird
Sage Thrasher
Western Bluebird
Mountain Bluebird
bluebird sp.
Townsend's Solitaire
Swainson's Thrush
Hermit Thrush
American Robin
Cedar Waxwing
House Sparrow
American Pipit
Evening Grosbeak
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Gray-crowned Rosy-Finch
House Finch
Cassin's Finch
Common Redpoll
Red Crossbill
Pine Siskin
Lesser Goldfinch
American Goldfinch
Acanthis/Spinus sp.
Lapland Longspur
Snow Bunting
Grasshopper Sparrow
Chipping Sparrow
Brewer's Sparrow
Spizella sp.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Lark Sparrow
American Tree Sparrow
Fox Sparrow
Dark-eyed Junco
White-crowned Sparrow
Golden-crowned Sparrow
Vesper Sparrow
Savannah Sparrow
Song Sparrow
Lincoln's Sparrow
Green-tailed Towhee
Spotted Towhee
new world sparrow sp.
Yellow-breasted Chat
Yellow-headed Blackbird
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Western Meadowlark
Bullock's Oriole
Red-winged Blackbird
Brown-headed Cowbird
Brewer's Blackbird
blackbird sp.
Tennessee Warbler
Orange-crowned Warbler
Nashville Warbler
MacGillivray's Warbler
Common Yellowthroat
American Redstart
Yellow Warbler
Blackpoll Warbler
Yellow-rumped Warbler
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Black-throated Gray Warbler
Townsend's Warbler
Setophaga sp.
Wilson's Warbler
new world warbler sp.
Western Tanager
Black-headed Grosbeak
Lazuli Bunting
passerine sp.
bird sp.

KEY:| = insufficient data | = rare to widespread

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