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Checklist S48113344

 
Location
Rodeo Lagoon, Marin County, California, US ( Map ) ( Hotspot )
Date and Effort
Mon Aug 27, 2018 7:35 AM
Protocol:
Traveling
Party Size:
1
Duration:
3 hour(s)
Distance:
2.5 mile(s)
Observers:
William Legge
Comments:
Wind WSW, light to moderate, overcast with low clouds, 12C/54F. 20 minute sea watch from Rodeo Beach followed by a circuit of the main lagoon. Mammals of note: 5 River Otters in the main lagoon and a Sonoma Chipmunk. Good number of expected passerine migrants with new birds every day at the moment.
Species
55 species (+1 other taxa) total
21
Mallard
12
Surf Scoter

On the ocean off Rodeo Beach

35
California Quail

Family groups of 18, 5 & 12

2
Anna's Hummingbird
1
Virginia Rail

Heard only from the inner lagoon

11
Least Sandpiper

Western shore of the main lagoon

7
Western Sandpiper

Western shoreline of the main lagoon

6
Red-necked Phalarope

In various plumages - 4 at the eastern end and 2 at the western end of the main lagoon

1
Greater Yellowlegs

On mud midway down the main lagoon (south side)

3
Common Murre

Two on the ocean off Rodeo Beach and one on Bird Island

425
Heermann's Gull

Most roosting on Bird Island

30
Western Gull
10
California Gull

Main lagoon - 6 juveniles and 4 adults

4
Caspian Tern
1
Red-throated Loon

On the ocean just off Rodeo Beach - in breeding plumage

150
Brandt's Cormorant

100 on Bird Island, 40+ flew N offshore and 10+ on the ocean

9
Double-crested Cormorant

4 on the main lagoon and 3 flew N and 2 SW offshore

361
Brown Pelican

171 flew N along the coastline, up to 150+ visiting the main lagoon at one time and 40 on Bird Island

2
Great Blue Heron
4
Great Egret
6
Snowy Egret
3
Black-crowned Night-Heron

2 juveniles and a 2nd CY bird

Age & Sex
Juvenile Immature Adult Age Unknown
Male
Female
Sex Unknown 2 1
2
Turkey Vulture
2
Downy Woodpecker
1
Northern Flicker

Heard only

1
Western Wood-Pewee

Field/Simmonds Road area

1
Pacific-slope Flycatcher
3
Pacific-slope/Cordilleran Flycatcher (Western Flycatcher)
5
Black Phoebe
3
California Scrub-Jay
2
American Crow
3
Common Raven
8
Northern Rough-winged Swallow
1
Tree Swallow
15
Barn Swallow
1
Cliff Swallow
3
Bewick's Wren
12
Wrentit
3
Western Bluebird
3
American Robin

Adult feeding two recently fledged young

Breeding Code
FL Recently Fledged Young (Confirmed)
2
House Finch
8
American Goldfinch
2
Dark-eyed Junco (Oregon)
11
White-crowned Sparrow
3
Savannah Sparrow

Beach dunes

7
Song Sparrow
6
California Towhee
6
Spotted Towhee
2
Orange-crowned Warbler
20
Common Yellowthroat
2
Yellow Warbler
1
Black-throated Gray Warbler

1st winter in cypress trees between Field and Simmonds Roads, just west of the Headlands Visitors Center Car Park

1
Townsend's Warbler

1st winter male - Simmonds Road cypress trees

2
Hermit Warbler

1st winter females at the junction of Field and Simmonds Roads

ML112539411

© William Legge

Hermit Warbler (1st winter female) - Rodeo Lagoon, Marin County, California, USA - August 27, 2018

Age:
Immature
Sex:
Female
11
Wilson's Warbler
1
Lazuli Bunting

1st winter/female in scrub adjoining the quarry on the north side of the main lagoon. Scarce at this site!

ML112539081

© William Legge

Average Quality

Lazuli Bunting - Rodeo Lagoon, Marin County, California, USA - August 27, 2018

Age:
Unknown
Sex:
Female
ML112539231

© William Legge

Average Quality

Lazuli Bunting - Rodeo Lagoon, Marin County, California, USA - August 27, 2018

Age:
Unknown
Sex:
Female
 

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

Yes