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Checklist S48352226

 
Location
Rodeo Lagoon, Marin County, California, US ( Map ) ( Hotspot )
Date and Effort
Fri Sep 07, 2018 7:35 AM
Protocol:
Traveling
Party Size:
1
Duration:
3 hour(s), 50 minute(s)
Distance:
2.5 mile(s)
Observers:
William Legge
Comments:
Wind SW, very light, overcast initially with low mist/fog above 250 feet lifting to 500 feet, 16C/60F. 15 minute sea watch from Rodeo Beach followed by a circuit of the main lagoon. Mammals of note: 1 Coyote at the beach and 3+ River Otters in the main lagoon.
Species
69 species (+2 other taxa) total
22
Mallard
1
Surf Scoter

On the ocean just off Rodeo Beach

18
California Quail
1
Eared Grebe

Main lagoon

3
Western Grebe

On the ocean off Rodeo Beach

1
Eurasian Collared-Dove
1
Vaux's Swift

Flew through SW

1
Anna's Hummingbird
4
Virginia Rail

Heard only - 3 from the inner lagoon and 1 from the main lagoon

1
Black Oystercatcher

Bird Island

4
Semipalmated Plover

3 juveniles present on the northern shore/mud spit and 1+ flew over high SE in to the fog

ML113958681

© William Legge

Average Quality

Semipalmated Plover - Rodeo Lagoon, Marin County, California, USA - September 7, 2018

Age:
Juvenile
Sex:
Sex Unknown
3
Western Sandpiper

Western shore of the main lagoon

18
Red-necked Phalarope

Eastern end of the main lagoon

350
Heermann's Gull

Most roosting on Bird Island

1
Ring-billed Gull

The continuing 1st winter

20
Western Gull
4
California Gull

1st winters at the main lagoon

2
Caspian Tern
30
Elegant Tern

Feeding offshore

1
loon sp.

Flew N offshore

225
Brandt's Cormorant

Bird Island

1
Pelagic Cormorant

On the ocean off Bird Island

6
Double-crested Cormorant

Main lagoon

336
Brown Pelican

225+ on Bird Island, up to 80 visiting the main lagoon at anyone time and 31+ flew N offshore

2
Great Blue Heron
4
Great Egret
11
Snowy Egret
3
Black-crowned Night-Heron
Age & Sex
Juvenile Immature Adult Age Unknown
Male
Female
Sex Unknown 3
1
Turkey Vulture
2
Red-tailed Hawk

Adults together at the northern shore of the main lagoon

1
Downy Woodpecker
2
Northern Flicker (Red-shafted)
2
Western Wood-Pewee

Simmonds Road and The Quarry

2
Pacific-slope Flycatcher
10
Pacific-slope/Cordilleran Flycatcher (Western Flycatcher)
5
Black Phoebe
3
Warbling Vireo
2
California Scrub-Jay
2
American Crow
3
Common Raven
3
Northern Rough-winged Swallow
1
Violet-green Swallow
ML113960081

© William Legge

Average Quality

Violet-green Swallow - Rodeo Lagoon, Marin County, California, USA - September 7, 2018

Age:
Juvenile
Sex:
Sex Unknown
10
Barn Swallow
3
Cliff Swallow
12
Chestnut-backed Chickadee
10
Bushtit
1
House Wren
1
Marsh Wren
5
Bewick's Wren
8
Wrentit
5
Western Bluebird
1
American Robin
2
European Starling
13
House Finch
2
Purple Finch
3
American Goldfinch
7
Dark-eyed Junco (Oregon)

Simmonds Road

11
White-crowned Sparrow
2
Savannah Sparrow

Beach dunes

17
Song Sparrow
1
Lincoln's Sparrow

Miwok Trailhead

5
California Towhee
6
Spotted Towhee
1
Tennessee Warbler

1st winter feeding primarily in the isolated and flowering Toyon tree just north of the Miwok Trailhead, north east of the main lagoon/Shed T1111. Superficially like a Orange-crowned Warbler, but a slightly lighter brighter green, two slight pale wing bars and light cream under-tail coverts. Moved off with a mixed flock of Bushtits/warblers working east up Miwok Trail. Spent about 15 minutes trying to get good views of this bird which eventually came but were very brief! Very poor and cropped photo below.

ML113962331

© William Legge

Average Quality
Age:
Immature
Sex:
Sex Unknown
1
Orange-crowned Warbler
1
MacGillivray's Warbler

1st winter midway along Lagoon Trail (west of the South Willows)

ML113962561

© William Legge

Average Quality
Age:
Immature
Sex:
Sex Unknown
20
Common Yellowthroat

Exact count

26
Yellow Warbler
4
Townsend's Warbler

Simmonds Road/Lagoon Trail (south side of the main lagoon)

ML113959481

© William Legge

Average Quality

Townsend's Warbler - Rodeo Lagoon, Marin County, California, USA - September 8, 2018

Age:
Adult
Sex:
Male
1
Hermit Warbler

1st winter at the Simmonds Road Cypress trees

7
Wilson's Warbler
 

Are you submitting a complete checklist of the birds you were able to identify?

Yes