Below
is a record of bird sightings noted in the ESNERR Sightings
Book by our docents and compiled by Linda Jordan.
Mid-November
to mid-December 2005
South Marsh Loop: Pied-billed Grebe; Western Grebe; American
White Pelican; Brown Pelican; Double-crested Cormorant; Great
Blue Heron; Great Egret; Snowy Egret; Black-crowned Night-Heron;
Wood Duck; Gadwall; American Wigeon; Mallard; Cinnamon Teal;
Northern Pintail; Green-winged Teal; Mandarin Duck(int); Greater
Scaup; Bufflehead; Red-breasted Merganser; Ruddy Duck; Turkey
Vulture; Osprey; White-tailed Kite; Northern Harrier; Coopers
Hawk; Red-shouldered Hawk; Red-tailed Hawk; American Kestrel;
Peregrine Falcon; Sora; American Coot; Black-bellied Plover;
Killdeer; Greater Yellowlegs; Willet; Spotted Sandpiper; Long-billed
Curlew; Marbled Godwit; Least Sandpiper; Dowitcher sps; Bonapartes
Gull; California Gull; Western Gull; Forsters Tern; Band-tailed
Pigeon; Annas Hummingbird; Belted Kingfisher; Acorn Woodpecker;
Red-breasted Sapsucker; Hairy Woodpecker; Northern Flicker;
Black Phoebe; Says Phoebe; Huttons Vireo; Western
Scrub-Jay; American Crow; Chestnut-backed Chickadee; Oak Titmouse;
Bushtit; Brown Creeper; Bewicks Wren; Ruby-crowned Kinglet;
Hermit Thrush; American Robin; Varied Thrush; Wrentit; European
Starling(int); American Pipit; Yellow-rumped Warbler; Townsends
Warbler; Spotted Towhee; California Towhee; Fox Sparrow; Song
Sparrow; White-crowned Sparrow; Golden-crowned Sparrow; House
Finch; Lesser Goldfinch and American Goldfinch.
North Marsh: American White Pelican; Brown Pelican; Great Blue
Heron; Great Egret; Snowy Egret; Mallard; Bufflehead; Common
Goldeneye; Black-necked Stilt; Greater Yellowlegs; Willet; Marbled
Godwit; Least Sandpiper, and Dowitcher ssp.
Kriby Park: Common Loon; Brown Pelican; Great Egret; Snowy Egret;
Black-necked Stilt; Long-billed Curlew; Marbled Godwit; Willet;
Black Phoebe; Yellow-rumped Warbler; Common Yellowthroat; Savannah
Sparrow, and White-crowned Sparrow.
Mid-October
to mid-November 2005
South Marsh Loop:Pied-billed Grebe; American White Pelican;
Brown Pelican; Double-crested Cormorant; Great-blue Heron; Great
Egret; Snowy Egret; Black-crowned Night-Heron; Canada Goose;
Wood Duck; Gadwall; American Wigeon; Mallard; Northern Pintail;
Green-winged Teal; Ruddy Duck; Mandarin Duck (exotic); Turkey
Vulture; Osprey; White-tailed Kite; Coopers Hawk; Red-shouldered
Hawk; Red-tailed Hawk; American Kestrel; Merlin; California
Quail; Sora (in Cattail Swale); American Coot; Black-bellied
Plover; Killdeer; Greater Yellowlegs; Willet; Spotted Sandpiper;
Whimbrel; Long-billed Curlew; Marbled Godwit; Western Sandpiper;
Least Sandpiper; Wilsons Snipe ( in Rookery Pond); California
Gull; Western Gull; Band-tailed Pigeon; Mourning Dove; Annas
Hummingbird; Belted Kingfisher; Acorn Woodpecker; Northern Flicker;
Black Phoebe; Says Phoebe; Western Scrub-Jay; American
Crow; Chestnut-backed Chickadee; Bushtit; Bewick's Wren; Marsh
Wren; Ruby-crowned Kinglet; Hermit Thrush; American Robin; European
Starling; Yellow-rumped Warbler; Townsends Warbler; Black-and-white
Warbler; Common Yellowthroat; Spotted Towhee; California Towhee;
Savannah Sparrow; Fox Sparrow; Song Sparrow; Lincolns
Sparrow; White-crowned Sparrow; Golden-crowned Sparrow; Red-winged
Blackbird; House Finch and Lesser Goldfinch.
Long Valley: Varied Thrush.
Other critters seen: Garter Snake; Gopher Snake; Jelly Fish;
Bat ray; Shark ssp; Red-legged Frogs; Southern Sea Otter; Deer;
Squirrels.
Mid-September to mid-October 2005
South Marsh Loop: Pied-billed Grebe; American White Pelican;
Brown Pelican; Double-crested Cormorant; Great Blue Heron; Great
Egret; Snowy Egret; Black-crowned Night-Heron; Wood Duck; Gadwall;
Mallard; Northern Pintail; Bufflehead; Ruddy Duck; Turkey Vulture;
Osprey; White-tailed Kite; Northern Harrier; Sharp-shinned Hawk;
Red-shouldered Hawk; Red-tailed Hawk; American Kestrel; California
Quail; Sora; American Coot; Black-bellied Plover; Killdeer;
Greater Yellowlegs; Willet; Spotted Sandpiper; Long-billed Curlew;
Marbled Godwit; Sanderling; Least Sandpiper; Heermanns
Gull; Ring-billed Gull; California Gull; Western Gull; Caspian
Tern; Forsters Tern; Mourning Dove; Great Horned Owl;
Annas Hummingbird; Belted Kingfisher; Acorn Woodpecker;
Nuttalls Woodpecker; Northern Flicker; Black Phoebe; Says
Phoebe; Huttons Vireo; Western Scrub-Jay; American Crow;
Chestnut-backed Chickadee; Oak Titmouse; Bushtit; Brown Creeper;
Bewicks Wren; Marsh Wren; Ruby-crowned Kinglet; American
Robin; Cedar Waxwing; Orange-crowned Warbler; Yellow-rumped
Warbler; Townsends Warbler; Common Yellowthroat; Wilsons
Warbler; Western Tanager; Spotted Towhee; California Towhee;
Savannah Sparrow; Fox Sparrow; Song Sparrow; White-crowned Sparrow;
Golden-crowned Sparrow; Red-winged Blackbird; House Finch; Lesser
Goldfinch; and House Sparrow.
Long Valley/Five Fingers: Great Blue Heron; Great Egret; Snowy
Egret; Mallard; Northern Harrier; Coopers Hawk; Red-tailed
Hawk; Merlin; Peregrine Falcon; Willet; Marbled Godwit; Forsters
Tern; Belted Kingfisher; Western Scrub-jay; Chestnut-backed
Chickadee; Oak Titmouse; Bushtit; California Towhee; Song Sparrow;
and American Goldfinch.
Kirby Park: American White Pelican; Brown Pelican; Double-crested
Cormorant; Great Egret; Snowy Egret; Mallard; Black-necked Stilt;
Greater Yellowlegs; Willet; Whimbrel; Long-billed Curlew; Marbled
Godwit; Red-necked Phalarope; Ring-billed Gull; Western Gull;
Black Phoebe; Western Scrub-Jay; Savannah Sparrow; and Song
Sparrow.
Mid-August to mid-September 2005
South Marsh Loop: Pied-billed Grebes; Brown and American White
Pelicans; Double-crested Cormorants; Great Blue Heron; Great
and Snowy egrets; Black-crowned Night Herons; Canada Goose;
Turkey Vulture; Mallards; Cinnamon Teal; White-tailed Kite;
California Quail; American Coot; Killdeer; American Avocets;
Red-tailed Hawk; Red-shouldered Hawk; Black-bellied Plovers;
Willets; Greater Yellowlegs; Spotted Sandpiper; Marbled Godwit;
Whimbrel; Long-billed Curlews; Least & Western sandpipers;
Ring-billed Gull; Western Gulls; Caspian Tern; Mourning Doves;
Great Horned Owls; Belted Kingfisher; Dowitchers; Annas
Hummingbird; Acorn and Downy Woodpeckers; Pacific Slope Flycatcher;
Black Phoebe; Wrentit; Western Scrub-Jay; American Crow; Tree,
Barn, and Cliff Swallows; Bewicks Wren; Chestnut-backed
Chickadee; Oak Titmouse; Bushtits; Black-headed Grosbeak; Swainsons
Thrush; Common Yellowthroat; Wilsons Warbler; Red-winged
and Brewers Blackbird; California and Spotted Towhees;
Song Sparrows; White-crowned Sparrows; House Finch; American
and Lesser Goldfinch
North Marsh: Brown Pelicans; Willets; Marbled Godwits; Great
Blue Herons; Great and Snowy Egrets; Caspian Tern; Red-necked
Phalaropes; Song Sparrow; Double-crested Cormorants.
Mid-July
to mid-August 2005
No data.
Mid-June
to mid-July 2005
South Marsh Loop: Pied-billed Grebe; Brown Pelican; Double-crested
Cormorant; Great Blue Heron; Great Egret; Snowy Egret; Black-crowned
Night-Heron; Turkey Vulture; Canada Goose; Mallard; Green-winged
Teal; White-tailed Kite; Red-shouldered Hawk; Red-tailed Hawk;
American Kestrel; Peregrine Falcon; California Quail; American
Coot; Killdeer; Yellowlegs species; Willet; Whimbrel; Long-billed
Curlew; Marbled Godwit; Western Gull; Caspian Tern; Mourning
Dove; Belted Kingfisher; Acorn Woodpecker; Nuttalls Woodpecker;
Downy Woodpecker; Pacific-slope Flycatcher; Black Phoebe; Western
Scrub-Jay; American Crow; Tree Swallow; Cliff Swallow; Barn
Swallow; Chestnut-backed Chickadee; Oak Titmouse; Bushtit; Brown
Creeper; Swainsons Thrush; American Robin; Wrentit; European
Starling; Orange-crowned Warbler; Common Yellowthroat; Wilsons
Warbler; Spotted Towhee; California Towhee; Song Sparrow; Black-headed
Grosbeak; Red-winged Blackbird; Brewers Blackbird; Purple
Finch; House Finch; American Goldfinch and House Sparrow.
Five Fingers: American White Pelican; Brown Pelican; Double-crested
Cormorant; Great Blue Heron; Great Egret; Black-crowned Night-Heron;
Mallard; Red-tailed Hawk; American Kestrel; Great Horned Owl;
Annas Hummingbird; Belted Kingfisher; Acorn Woodpecker;
Stellers Jay; Western Scrub-Jay; American Crow;
Chestnut-backed Chickadee; Common Yellowthroat and House Finch.
Long Valley: Brown Pelican ; Double-crested Cormorant; White-tailed
Kite; Red-tailed Hawk; Pacific-slope Flycatcher; Western Scrub-Jay;
Tree Swallow; Chestnut-backed Chickadee; Oak Titmouse; Bushtit;
Common Yellowthroat and Song Sparrow.
Hudsons Landing: Red Shouldered Hawk.
Mid-May
to mid-June 2005
South Marsh Loop:Pacific Loon; American White Pelican; Brown
Pelican; Double-crested Cormorant; Great Blue Heron; Great Egret;
Snowy Egret; Black-crowned Night-Heron; Canada Goose; Gadwall;
American Wigeon; Mallard; Cinnamon Teal; Turkey Vulture; Osprey;
White-tailed Kite; Northern Harrier; Sharp-shinned Hawk; Red-shouldered
Hawk; Red-tailed Hawk; California Quail; American Coot; Willet;
Whimbrel; Marbled Godwit; Western Gull; Mourning Dove; Annas
Hummingbird; Belted Kingfisher; Acorn Woodpecker; Downy Woodpecker;
Pacific-slope Flycatcher; Black Phoebe; Huttons Vireo;
Western Scrub-Jay; American Crow; Tree Swallow; Cliff Swallow;
Barn Swallow; Chestnut-backed Chickadee; Oak Titmouse; Bushtit;
Bewicks Wren; Swainsons Thrush; American Robin;
Wrentit; European Starling; Orange-crowned Warbler; Common Yellowthroat;
Wilsons Warbler; Spotted Towhee; California Towhee; Song
Sparrow; Black-headed Grosbeak; Red-winged Blackbird; Brewers
Blackbird; Purple Finch; House Finch; American Goldfinch; and
House Sparrow.
Long Valley Loop: Brown Pelican, Double-crested Cormorant; White-tailed
Kite; Western Scrub-Jay; Bushtit; Chestnut-backed Chickadee
Mid-April to mid-May 2005
South Marsh Loop: Pied-billed Grebe; Eared Grebe; Western Grebe;
American White Pelican; Double-crested Cormorant; Great Blue
Heron; Great Egret; Snowy Egret; Black-crowned Night-Heron;
Canada Goose; Gadwall; American Wigeon; Mallard; Cinnamon Teal;
Northern Pintail; Green-winged Teal; Surf Scoter; Black Scoter;
Bufflehead; Common Goldeneye; Red-breasted Merganser; Ruddy
Duck; Turkey Vulture; White-tailed Kite; Red-tailed Hawk; American
Kestrel; Wild Turkey; Black-bellied Plover; Killdeer; Greater
Yellowlegs; Willet; Spotted Sandpiper; Whimbrel; Long-billed
Curlew; Marbled Godwit; Western Sandpiper; Least Sandpiper;
Dowitcher species; Western Gull; Caspian Tern; Forsters
Tern; Mourning Dove; Barn Owl; Great Horned Owl; Annas
Hummingbird; Belted Kingfisher; Acorn Woodpecker; Northern "red-shafted"
Flicker; Pacific-slope Flycatcher; Black Phoebe; Stellers
Jay; American Crow; Tree Swallow; Cliff Swallow; Barn Swallow;
Chestnut-backed Chickadee; Oak Titmouse; Bewicks Wren;
House Wren; Ruby-crowned Kinglet; American Robin; Yellow-rumped
Warbler; Common Yellowthroat; Spotted Towhee; California Towhee;
Fox Sparrow; Song Sparrow; White-crowned Sparrow; Red-winged
Blackbird; and House Finch.
Long Valley: White Pelican; Willet; Snowy Egret; Great Egret;
and Spotted Towhee.
Kirby Park; Common Loon; Pelagic Cormorant; Canada Goose; Surf
Scoter; Willet; Whimbrel; Long-billed Curlew; Marbled Godwit;
Sandpiper sp.; Western Gull; Forsters Tern; Annas
Hummingbird; Western Scrub-Jay; and Song Sparrow.
Other Sightings: Baby Barn Owls in big barn; bunnies, and a
Long-tailed Weasel at the Overlook.
Mid-March
to mid-April 2005
South Marsh Loop: American White Pelican; Double-crested Cormorant;
Great Blue Heron; Great Egret; Snowy Egret; Green Heron; Black-crowned
Night-Heron; Canada Goose; Gadwall; American Wigeon; Mallard;
Scaup species; Red-breasted Merganser; Turkey Vulture; Osprey;
White-tailed Kite; Sharp-shinned Hawk; Red-tailed Hawk; American
Kestrel; California Quail; American Coot; Black-bellied Plover;
Semipalmated Plover; Lesser Yellowlegs; Willet; Spotted Sandpiper;
Whimbrel; Long-billed Curlew; Marbled Godwit; Western Sandpiper;
Western Gull; Caspian Tern; Forster's Tern; Band-tailed Pigeon;
Mourning Dove; Barn Owl; Anna's Hummingbird; Belted Kingfisher;
Acorn Woodpecker; Pacific-slope Flycatcher; Black Phoebe; Huttons
Vireo; Western Scrub-Jay; American Crow; Tree Swallow; Cliff
Swallow; Barn Swallow; Chestnut-backed Chickadee; Oak Titmouse;
Bushtit; Brown Creeper; Bewick's Wren; Marsh Wren; American
Robin; Wrentit; European Starling; Common Yellowthroat; Western
Tanager; Wilson's Warbler; Spotted Towhee; California Towhee;
Song Sparrow; Dark-eyed Junco; Black-headed Grosbeak; Red-winged
Blackbird; House Finch and American Goldfinch.
Long Valley: Rufous Hummingbird; Western Scrub-Jay; American
Crow; Tree Swallow; Chestnut-backed Chickadee; Oak Titmouse
and Spotted Towhee.
Five Fingers: Nuttall's Woodpecker; Olive-sided Flycatcher;
Pacific-slope Flycatcher; Tree Swallow; Bewick's Wren; Common
Yellowthroat and Spotted Towhee.
Kirby Park: Red-throated Loon; Common Loon; Pelagic Cormorant;
Willet; Marbled Godwit; Whimbrel; Song Sparrow and Red-winged
Blackbird.
Other Spottings: Pond Turtles; otters; Leopard Shark and bunnies.
Mid-February
to mid-March 2005
South Marsh Loop: South Marsh Loop: Pied-billed and Eared Grebes;
Brown and American White Pelicans; Double-crested Cormorants;
Great Blue Heron; Great and Snowy Egrets; Red-breasted Mergansers;
Mallards; Northern Pintails; American Wigeon; Buffleheads; Surf
Scoters; Turkey Vulture; White-tailed Kite; Osprey; American
Kestrels; Red-tailed Hawk; Sharp-shinned Hawk; Black-bellied
Plovers; Willets; Greater Yellowlegs; Spotted Sandpiper; Marbled
Godwit; Long-billed Curlews; Least and Western Sandpipers; Western
and Ring-billed Gulls; Forsters Tern; Mourning Doves;
Annas Hummingbird; Belted Kingfishers; Acorn Woodpeckers;
Black and Says Phoebe; Huttons Vireo; Western Scrub-Jay;
American Crow; Chestnut-backed Chickadee; Oak Titmouse; Bushtits;
Bewicks Wren; Ruby-crowned Kinglet; Wrentit; European
Starlings; Yellow-rumped Warbler; Common Yellowthroat; Townsends
Warbler; California and Spotted Towhees; Song Sparrows; Savannah
Sparrow; Golden and White-crowned Sparrows; House Finch; House
Sparrows.
Long Valley/Five Fingers: Snowy Egret; Double-crested Cormorant;
Canada Geese; Gadwall; American Wigeon; Northern Pintail; Green-winged
Teal; Bufflehead; Goldeneye; Red-breasted Merganser; Turkey
Vulture; White-tailed Kites; Red-tailed Hawk; Annas Hummingbird;
Belted Kingfisher; Black and Says Phoebes; Acorn Woodpecker;
Western Scrub-Jay; American Crow; Chestnut-backed Chickadees;
Oak Titmouse; Bushtits; Ruby-crowned Kinglet; American and Spotted
Towhees; Song and Golden-crowned Sparrow; House Finch Kirby
Park: Pied-billed Grebes; Double-crested Cormorants; Buffleheads;
Goldeneyes; Marbled Godwits; Long-billed Curlews; Willets; Western
and Ring-billed Gulls; Forsters Tern; Annas Hummingbirds;
Black Phoebe; Common Yellowthroat; Song Sparrow; Brewers
Blackbird.
North Marsh: American Avocets; Great and Snowy Egrets; Great
Blue Heron; Black-necked Stilts; Marbled Godwits; Forsters
Terns.
Mid-January
to mid-February 2005
South Marsh Loop: South Marsh Loop: Red-breasted Merganser;
Pied-billed and Western Grebe; Double-crested Cormorant; Pelagic
Cormorant; Great Blue Heron; Great and Snowy Egret; Turkey Vulture;
Mallard; Northern Pintail; American Wigeon; Cinnamon and Green-winged
Teal; Gadwall; Northern Shoveler; Canada Goose; White-tailed
kite; Bufflehead; Ruddy Duck; American Kestrel; Red-tailed Hawk;
Black-bellied Plover; Willet; Greater Yellowlegs; Spotted Sandpiper;
Whimbrel; Marbled Godwit; Black Scoter; Long-billed Curlew;
Least and Western Sandpiper; Dowitcher; Belted Kingfisher; Western
and Ring-billed Gull; Forsters Tern; Mourning Dove; Barn
Owl; Annas Hummingbird; Acorn Woodpecker; Northern Flicker;
Pacific Slope Flycatcher; Northern Rough-winged Swallow; Tree
Swallow; Black and Says Phoebe; Western Scrub-Jay; American
crow; Chestnut-backed Chickadee; Oak Titmouse; Bushtit; American
Robin; Western Bluebird; Bewicks Wren; Ruby-crowned Kinglet;
European Starling; Yellow-rumped Warbler; Common Yellow-throat;
California and Spotted Towhee; House Sparrow; Song Sparrow;
Golden and White-crowned sparrow; Red-winged Blackbird; House
Finch.
Long Valley/Five Fingers: White-tailed Kite; Red-tailed Hawk;
Annas Hummingbird; Pacific Slope Flycatcher; Chestnut-backed
Chickadee; Oak Titmouse; Bushtit; Bewicks Wren; Ruby-crowned
Kinglet; American and Spotted Towhee; Song and Golden-crowned
Sparrow; House Finch; Belted Kingfisher.
Mid-December
2004 to mid-January 2005
South Marsh Loop: Pied-billed Grebe; Horned Grebe; Western Grebe;
Brown Pelican; Double-crested Cormorant; Great Blue Heron; Great
and Snowy Egrets; Canada Goose; Gadwall, American Wigeon; Mallard;
Northern Pintail; Bufflehead; Common Goldeneye; Red-breasted
Merganser; White-tailed Kite; Northern Harrier; Red-shouldered
and Red-tailed Hawks; American Kestrel; Killdeer; Greater Yellowlegs;
Willet; Spotted Sandpiper; Whimbrel; Long-billed Curlew; Marbled
Godwit; Long-billed Dowitcher; California and Western Gulls;
Forsters Tern; Mourning Dove; Annas Hummingbird;
Belted Kingfisher; Acorn and Downy Woodpeckers; Northern (red-shafted)
Flicker; Black and Says Phoebes; Loggerhead Shrike; Western
Scrub-Jay; American Crow; Chestnut-backed Chickadee; Oak Titmouse;
Bushtit; Bewicks Wren; Ruby-crowned Kinglet; Western Bluebird;
American Robin; European Starling; Yellow-rumped Warbler; Spotted
and California Towhees; Song Sparrow; White-crowned and Golden-crowned
Sparrows; and House Finch.
North Marsh: Black-necked Stilt; American Avocet and Western
Sandpipers.
Mid-November
to mid-December 2004
South Marsh Loop: Pied-billed and Western Grebes; Brown and
American White Pelicans; Double-crested Cormorant; Great Blue
Heron; Great and Snowy Egrets; American Wigeon; Mallard; Northern
Pintail; Green-winged Teal; Ring-necked Duck; Bufflehead; Common
Goldeneye; Red-breasted Merganser; Turkey Vulture; White-tailed
Kite; Northern Harrier; Coopers Hawk; Red-tailed Hawk;
American Kestrel; Peregrine Falcon; California Quail; Black-bellied
Plover; Killdeer; Black-necked Stilt; American Avocet; Greater
Yellowlegs; Willet; Spotted Sandpiper; Whimbrel; Long-billed
Curlew; Marbled Godwit; Sanderling; Western and Least Sandpipers;
Dunlin; Dowitcher species; California and Western Gulls; Forsters
Tern; Mourning Dove; Annas Hummingbird; Belted Kingfisher;
Acorn Woodpecker; Northern "Red-shafted" Flicker;
Black and Says Phoebes; Loggerhead Shrike; Western Scrub-Jay;
American Crow; Chestnut-backed Chickadee; Oak Titmouse; Bushtit;
Ruby-crowned Kinglet; Hermit Thrush; Wrentit; European Starling;
Yellow-rumped and Townsends Warblers; Spotted and California
Towhees; Savannah and Song Sparrows; White-crowned and Golden-crowned
Sparrows; Western Meadowlark; House Finch; Lesser Goldfinch;
and House Sparrow.
North Marsh: Great and Snowy Egrets; Great Blue Heron; American
White Pelicans; Forsters Tern; Dowitcher species; Bufflehead;
Black-necked Stilt; and American Avocet.
Five Fingers: Great Blue Heron; Great and Snowy Egrets; Northern
Pintail; Red-tailed Hawk; American Kestrel; Long-billed Curlew;
Willet; Marbled Godwit; Western Gull; Black Phoebe; Western
Scrub-Jay; Chestnut-backed Chickadee; Oak Titmouse; and Ruby-crowned
Kinglet.
VC Parking Lot: 5 Western Bluebirds
Long Valley: Mallard; Red-shouldered Hawk; Willet; Sandpiper
species; Marbled Godwit; Black Phoebe; Western Scrub-Jay; Chestnut-backed
Chickadee; and Oak Titmouse.
Mid-October
to mid-November 2004
South Marsh Loop: Pied-billed Grebe; American Pelican and Brown
Pelican; Brandts and Double-crested Cormorants; Great
Blue Heron; Great and Snowy Egrets; Black-crowned Night-Heron;
Gadwall; American Wigeon; Mallard; Blue-winged, Cinnamon and
Green-winged Teals; Northern Shoveler; Northern Pintail; Bufflehead;
Ruddy Duck; Turkey Vulture; Osprey; White-tailed Kite; Northern
Harrier; Coopers Hawk; Red-shouldered and Red-tailed Hawks;
American Kestrel; Peregrine Falcon; California Quail; Black-bellied
Plover; Killdeer; Black-necked Stilt; American Avocet; Greater
Yellowlegs; Willet; Spotted Sandpiper; Long-billed Curlew; Marbled
Godwit; Sanderling; Western and Least Sandpipers; Dunlin; Dowitcher
species; Ring-billed , California and Western Gulls; Forsters
Tern; Mourning Dove; Annas Hummingbird; Belted Kingfisher;
Acorn, Nuttalls and Downy Woodpeckers; Northern Flicker;
Black and Says Phoebes; Huttons Vireo; Western Scrub-Jay;
American Crow; Tree and Violet-green Swallows; Chestnut-backed
Chickadee; Oak Titmouse; Bushtit; Brown Creeper; Bewicks
and Marsh Wrens; Ruby-crowned Kinglet; Hermit Thrush; American
Robin; European Starling; Yellow-rumped and Townsends
Warblers; Common Yellowthroat; Spotted and California Towhees;
Savannah, Fox and Song Sparrows; Golden-crowned and White-crowned
Sparrows; Western Meadowlark; Brewers Blackbird; House
Finch; Lesser Goldfinch; and House Sparrow.
North Marsh: American White and California Brown Pelicans; Great
and Snowy Egrets; Mallard; Killdeer; Black-necked Stilt; American
Avocet; Dunlin; and Dowitchers.
Main Channel off Hummingbird Island: Pied-billed and Western
Grebes; American White Pelicans and Brown Pelicans; Double-crested
Cormorant; Great and Snowy Egrets; Black-bellied Plover; American
Avocet; Willet; Long-billed Curlew; Marbled Godwit; Western
and Least Sandpipers; Forsters Tern and Glaucous-winged
Gull.
Mid-September
to mid-October 2004
All sightings reported this period came from the South Marsh
Loop area. We encourage all to check out other areas such as
Parsons Slough, Five Fingers, Long Valley (especially
during outgoing tides) on your walks - you will find them surprisingly
birdy.
South Marsh Loop: Pied-billed Grebe; Brown Pelican; Double-crested
Cormorant; Great Blue Heron; Great Egret; Snowy Egret; Black-crowned
Night-Heron; Turkey Vulture; Mallard; Northern Shoveler; White-tailed
Kite; Northern Harrier: Red-shouldered Hawk; Red-tailed Hawk;
American Kestrel; California Quail; Black-bellied Plover; Killdeer;
Black-necked Stilt; Greater Yellowlegs; Willet; Spotted Sandpiper;
Whimbrel; Long-billed Curlew; Marbled Godwit; Sanderling; Western
and Least Sandpipers; Ring-billed Gull; California Gull; Western
Gull; Forsters Tern; Mourning Dove; Great Horned Owl;
Annas Hummingbird; Belted Kingfisher; Acorn Woodpecker;
Nuttalls Woodpecker; Northern Flicker; Black Phoebe; Says
Phoebe; Loggerhead Shrike; Western Scrub-Jay; American Crow;
Tree Swallow; Chestnut-backed Chickadee; Oak Titmouse; Bushtit;
Bewicks Wren; Marsh Wren; Ruby-crowned Kinglet; Hermit
Thrush; Wrentit; European Starling; Yellow-rumped Warbler; Townsends
Warbler; Common Yellowthroat; Spotted Towhee; California Towhee;
Savannah Sparrow; Song Sparrow; White-crowned and Golden-crowned
Sparrows; House Finch; Lesser and American Goldfinches.
And by the Vistors Center; A flock of Western Bluebirds.
Mid-August to mid-September 2004
Fall
is that pause before the sleep of winter when the memory of
summer is still fresh, and the birds of the southward migration
arrive in dizzying quantity.
South Marsh Loop: Pied-billed Grebe; Sooty Shearwater; Brown
and American White Pelicans; Double-crested Cormorant; Great
Blue Heron; Great and Snowy Egrets; Black-crowned Night-Heron;
Turkey Vulture; Canada Goose; Mallard; Northern Pintail; Red-breasted
Merganser; White-tailed Kite; Golden Eagle; Northern Harrier;
Cooper's, Red-shouldered and Red-tailed Hawks; American Kestrel;
Peregrine Falcon; California Quail; Black-bellied Plover; Semipalmated
Plover; Killdeer; American Avocet; Greater and Lesser Yellowlegs;
Willet; Spotted Sandpiper; Whimbrel; Long-billed Curlew; Marbled
Godwit; Sanderling; Western and Least Sandpipers; Dowitchers;
Gull sps; Western Gull; Caspian and Forster's Tern; Mourning
Dove; Great Horned Owl; Anna's Hummingbird; Belted Kingfisher;
Acorn, Nuttall's and Downy Woodpeckers; Pacific-slope Flycatcher;
Black Phoebe; Loggerhead Shrike; Western Scrub-Jay; American
Crow; Tree, Cliff, Barn and Northern Rough-winged Swallows;
Chestnut-backed Chickadee; Oak Titmouse; Bushtit; Brown Creeper;
Marsh and Bewick's Wrens; Wrentit; European Starling; Orange-crowned
Warbler; Common Yellowthroat; Spotted and California Towhees;
Song Sparrow; House Finch; Lesser and American Goldfinches;
and House Sparrow.
Long Valley and Five Fingers: Brown and American White Pelicans;
Great BlueHeron; Great and Snowy Egrets; Turkey Vulture; Mallard;
White-tailed Kite; Red-shouldered and Red-tailed Hawks; American
Kestrel; Wild Turkey;
California Quail; Willet; Long-billed Curlew; Marbled Godwit;
Western Gull; Belted Kingfisher; Acorn and Hairy Woodpeckers;
Pacific-slope Flycatcher; Black Phoebe; Western Scrub-Jay; American
Crow; Chestnut-backed Chickadee; Oak Titmouse; Wrentit; Common
Yellowthroat; Spotted and California Towhees; Song and White-crowned
Sparrows; House Finch; and Lesser Goldfinch.
North Marsh and Strawberry Pond: Brown and American White Pelicans;
Great and Snowy Egrets; Great Blue Heron; Black-necked Stilt;
Marbled Godwit; Least and Western Sandpipers; and Red-necked
Phalarope.
Mid-July to mid-August 2004
Flocks
of peeps, spinning phalaropes, and sitting ducks are once again
gracing the mudflats.
South Marsh Loop: Pied-billed Grebes; Brown and White Pelicans;
Double-crested Cormorants; Great Blue Heron; Great and Snowy
Egrets; Black-crowned Night Herons; Green Heron; Turkey Vulture;
Mallards; White-tailed Kite; American Kestrel; California Quail;
Red-tailed Hawk; Red-shouldered Hawk; Coopers Hawk; Black-bellied
Plovers; Willets; Greater Yellowlegs; Spotted Sandpiper; Marbled
Godwit; Whimbrel; Long-billed Curlews; Least and Western Sandpipers;
Heermanns Gull; Western Gulls; Forsters Tern; Caspian
Tern; Mourning Doves; three Great Horned Owls; Barn Owl; Belted
Kingfisher; Dowitchers; Annas Hummingbird; Acorn Woodpeckers;
Pacific -Slope Flycatcher; Black Phoebe; Western Scrub-Jay;
American Crow; Tree, Barn, And Cliff Swallows; Chestnut-backed
Chickadee; Oak Titmouse; Bushtits; American Robin; European
Starlings; Blackbirds; Common Yellowthroat; California and Spotted
Towhees; House Sparrows; Song Sparrows; Savannah Sparrow; White-crowned
Sparrows; Purple and House Finch; American Goldfinch; Lesser
Goldfinch
Long Valley and Five Fingers: Snowy Egret; Double-crested Cormorant;
White-tailed Kites; Red-shouldered Hawk; Black-bellied Plovers;
Killdeers; Willets; Marbled Godwit; Least and Western Sandpipers;
California Gull; Pacific- Slope Flycatcher; California and
Spotted Towhee; Golden Eagle
Hummingbird Island:
Ring-billed Gull; Red-necked Phalaropes; Black-bellied Plovers;
Long-billed Curlews; Black-crowned Night Herons; Annas
Hummingbird; White-tailed Kite.
Mid-June
to mid-July 2004
Every
year around this time, Great Horned Owl sightings increase.
Just about every tour reports seeing one or more, and one MBB
posting mentioned seeing three on a recent visit! Why is this?
A recent article in the spring 2004 issue of Living Bird magazine
solved the riddle. After fledging, young owls stay in their
parents territories all summer, usually until September
when they depart to find their own territories. So what we are
seeing are the young of the year, hanging around until persuaded
to leave by their parents.
South Marsh Loop: American White and Brown Pelicans; Double-crested
Cormorant; Great Blue and Green Herons; Great and Snowy Egrets;
Black-crowned Night-Heron; Turkey Vulture; Canada Goose; Gadwall;
Mallard; Northern Shoveler; White-tailed Kite; Red-shouldered
and Red-tailed Hawks; American Kestrel; Wild Turkey; California
Quail; Greater Yellowlegs; Willet; Whimbrel; Long-billed Curlew;
Marbled Godwit; Dunlin; California and Western Gulls; Caspian
and Forsters Terns; Mourning Dove; Great Horned Owl; Vauxs
Swift; Annas Hummingbird; Belted Kingfisher; Acorn, Downy
and Hairy Woodpeckers; Pacific-slope and Ash-throated Flycatchers;
Black Phoebe; Western Scrub-Jay; American Crow; Tree, Violet-green,
Cliff and Barn Swallows; Chestnut-backed Chickadee; Oak Titmouse;
Bushtit; Bewicks and Marsh Wrens; Swainsons Thrush;
American Robin; European Starling; Common Yellowthroat; Wilsons
Warbler; Spotted and California Towhees; Savannah and Song Sparrows;
Black-headed Grosbeak; Red-winged and Brewers Blackbirds
Brown-headed Cowbird; House Finch, American Goldfinch and House
Sparrow.
Cattail Swale: Black-crowned Night-Heron; Green Heron; Mallard;
Belted Kingfisher; Pacific-slope Flycatcher; Black Phoebe; Western
Scrub-Jay; Tree Swallow; Orange-crowned Warbler; and California
Towhee.
Five Fingers: Pelagic Cormorant.
Hummingbird Island: Great Egret; Willet; Long-billed Curlew;
Marbled Godwit.
Hudsons Landing: White-tailed Kite; Red-tailed Hawk; Ruddy
Duck; Black-necked Stilt; Willet; Whimbrel; Long-billed Curlew;
Least Sandpiper; Dunlin.
North Marsh: American White Pelican ( 45+); Caspian Tern.
Mid-April
to mid-May 2004
Why do birds deviate from their normal path of migration? For
example, what happened to the Yellow-billed Loon that's been
seen here at Elkhorn Slough? Birds use orientation and
navigation to reach their migratory destinations. Orientation
is achieved through internal compasses based on the sun's location,
the stars, and the earth's magnetic field. The earth's magnetic
field may be used in navigation as well. Navigation is not as
well understood as orientation in birds, but it is thought that
birds use geographical features such as coastlines, mountain
ranges, and major river systems as navigational landmarks.
Some possible reasons for rare sightings are mis-oriented migration
the longer the migratory path, the greater chance for
vagrancy, spring overshooting, post-breeding dispersal, and
extreme environmental change. However, no rare sighting should
be classified as accidental; there is always a reason.
Kirby Park: Yellow-billed Loon; Snowy and Great Egret; Semipalmated
Plover; American Avocets; Dunlin; Western Sandpiper; Forster's
Tern.
North Marsh: Brown and White Pelicans; Mallards; Gadwalls; Black-necked
Stilts; Great and Snowy Egrets; Great Blue Heron; Black-crowned
Night Heron.
Hummingbird Island: Peregrine Falcon eating bird prey.
South Marsh Loop: Western Grebe; White Pelicans; Double-crested
Cormorants; Great Blue Heron; Great and Snowy Egrets; Black-crowned
Night Heron; Green Heron; Turkey Vulture; Canada Goose; Mallards;
Gadwall; Green-winged Teal; White-tailed Kite; Northern Harrier;
Osprey; American Kestrel; California Quail; Red-tailed Hawk;
Red-shouldered Hawk; Cooper's Hawk; Willets; Whimbrels; Greater
Yellowlegs; Spotted Sandpiper; Black-bellied Plover; Killdeer;
Dowitchers; Long-billed Curlew; Marbled Godwit; California and
Western Gulls; Caspian Tern; Mourning Doves; Rock Pigeons; Barn
Owl; Anna's and Rufous Hummingbird; Acorn Woodpeckers; Northern
Flicker; Pacific-slope Flycatcher; Black Phoebe; Western Scrub
Jay; American Crow; Tree, Barn, and Cliff Swallows; Chestnut-backed
chickadee; Marsh Wren; Oak Titmouse; Bushtits; Bewick's Wren;
Ruby-crowned Kinglet; Wrentit; European Starlings; American
Robins; Black-headed Grosbeak; Orange-crowned Warbler; Yellow-rumped
Warbler; Wilson's Warbler; Common Yellow-throat; Red-winged
Blackbirds; Cedar Waxwings; Brown-headed Cowbirds; Brewer's
Blackbirds; California and Spotted Towhees; Song Sparrows; White-crowned
Sparrows; House Finch; Lesser Goldfinch; American Goldfinch;
Lawrence's Goldfinch; plus Western Pond Turtles, Brush Rabbits,
Western Fence Llizards, and a Long -tailed Weasel.
Long Valley Loop: Snowy Egret; Mallard; Red-shouldered Hawk;
Western Scrub Jay; California Towhee; Song Sparrow; House Finch;
American Goldfinch
Mid-March
to mid-April 2004
Spring is a wonderful time of year to witness the romance and
courtship rituals of our feathered friends: the sweet songs
of males trying to entice a mate and the locking of talons and
spinning in skies above from our raptors. The ultimate goal:
a nest full of eggs, then hatchlings that fledge and new life
begins. Here at the slough, some nests have eggs; others have
nestlings that are well on their way to independence.
Kirby Park: Common Loon; Eared Grebes; Double-crested Cormorants;
Great Blue Heron; Snowy and Great Egret; Turkey Vulture; Gadwall;
Wigeon; Blue-winged and Cinnamon Teals; Mallards; Bufflehead;
Goldeneye; White-tailed Kite; Red-tailed Hawk; Black-bellied
Plovers; Black-necked Stilt; American Avocets; Marbled Godwits;
Yellowlegs; Willets; Whimbrel; Western Gull; Forster's Tern;
Long-billed Curlew; Dowitchers; Western Scrub-Jay; Red-winged
and Brewer's Blackbirds; American Crow; White-crowned and Song
Sparrows
North Marsh: hundreds of Great and Snowy Egrets; Great Blue
Heron at low tide
South Marsh Loop: Pied-billed Grebe; White Pelicans; Double-crested
Cormorants; Great Blue Heron; Great and Snowy Egrets; Black-crowned
Night Heron; Green Heron; Turkey Vulture; Canada Goose; Mallards;
Gadwall; American Wigeon; Cinnamon and Green-winged Teal; Northern
Shoveler; Northern Pintails; Bufflehead; American Coot; Red-breasted
Merganser; Goldeneye; Red-tailed Hawk, White-tailed Kite; Northern
Harrier; Kestrel; California Quail; Red-shouldered Hawk; Black-bellied
Plover; Greater Yellowlegs; Willets; Spotted Sandpiper; Marbled
Godwits; Long-billed Curlew; Dowitchers; Western Gulls; Caspian
and Forster's Tern; Mourning Doves; Barn Owl; Anna's and Allen's
Hummingbird; Rock Pigeons; Belted Kingfisher; Acorn and Nuttall's
Woodpecker; Northern Flicker; Pacific-sloped Flycatcher; Black
Phoebe; Western Scrub-Jay; American Crow; Tree and Barn Swallows;
Chestnut-backed Chickadee; Marsh Wren; Oak Titmouse; Bushtit;
Ruby-crowned Kinglet; Wrentit; Bewick's Wren; American Robins;
European Starlings; Cedar Waxwings; Orange-crowned Warbler;
Yellow-rumped Warbler; Wilson's Warbler; Red-winged Blackbirds;
Western Bluebird; Common Yellowthroat; California and Spotted
Towhees; Savannah and Song Sparrows; White-crowned Sparrows;
House Sparrow; House Finch; American Goldfinch
South Marsh Loop to Hummingbird Island: Eared Grebe; Western
Grebe; Great and Snowy Egrets; Canada Goose; Cinnamon Teals;
Northern Pintails; Lesser Scaup; Bufflehead; Red-breasted Merganser;
White-tailed Kite; Red-tailed Hawk; Black-bellied Plover; American
Avocet; Willet; Spotted Sandpipers; Marbled Godwits; Dowitchers;
Western Gulls; Forster's Tern; Western Scrub-Jay; American Crow;
Tree Swallow; Chestnut-backed Chickadee; Bushtits; Spotted Towhee;
Song Sparrow; White and Golden-crowned Sparrows
Long Valley Loop and Five Fingers: Great Blue Heron; Great and
Snowy Egrets; Double-crested Cormorants; Canada Goose; Caspian
Terns; White-tailed Kites; Red-tailed and Red-shouldered Hawks;
American Kestrel; Anna's Hummingbird; Acorn Woodpeckers; Downy
Woodpeckers; Nuttall's Woodpecker; Pacific-sloped Flycatcher;
American Crow; Tree Swallow; Hutton's Vireo; Western Scrub-Jay;
Chestnut-backed Chickadee; Bewick's Wren; Oak Titmouse; Common
Yellowthroat; Yellow-rumped Warbler; Song and Golden-crowned
Sparrows; California and Spotted Towhee; Dark-eyed Junco