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Checklist S48045102

 
Location
Rodeo Lagoon, Marin County, California, US ( Map ) ( Hotspot )
Date and Effort
Fri Aug 24, 2018 6:50 AM
Protocol:
Traveling
Party Size:
2
Duration:
3 hour(s), 30 minute(s)
Distance:
2.5 mile(s)
Observers:
William Legge
Comments:
Wind NW, light, overcast, low clouds, 13C/55F. 20 minute sea watch from Rodeo Beach followed by a circuit of the main lagoon. Mammals of note: 1 Harbor Seal offshore. Good 'fall' of expected western passerine migrants adjoining the main lagoon.
Species
64 species total
23
Mallard
13
Surf Scoter

On the ocean off Rodeo Beach

39
California Quail
3
Western Grebe

On the ocean off Rodeo Beach

1
Clark's Grebe

On the ocean with Western Grebes

1
Anna's Hummingbird
1
Virginia Rail

Heard only from the inner lagoon

1
Black Oystercatcher

Bird Island

2
Semipalmated Plover

Two flew in off the ocean high and continued SE over the southern Headlands

Breeding Code
F Flyover (Observed)
1
Whimbrel (Hudsonian)

Flew in from the beach and landed at the western shore of the main lagoon. An individual with a damaged right leg/foot

ML112093451

© William Legge

Average Quality

Whimbrel (Hudsonian) - Rodeo Lagoon, Marin County, California, USA - August 24, 2018. Note damaged right leg/foot

Age:
Unknown
Sex:
Sex Unknown
8
Least Sandpiper

Mainly at the western shore of the main lagoon

14
Western Sandpiper

Western shore of the main lagoon. Only 2 present when we started so the others came in later

1
Red-necked Phalarope

Perhaps two

1
Spotted Sandpiper

Midway down the main lagoon

3
Common Murre

On the ocean off Rodeo Beach

1
Pigeon Guillemot

Adult on the ocean off Rodeo Beach

390
Heermann's Gull

375+ on Bird Island and up to 15 visiting the main lagoon

30
Western Gull
25
California Gull

10 present on the main lagoon (mostly juveniles) and a flock 15 mainly adults offshore which left N

6
Caspian Tern
8
Elegant Tern

Flew N well offshore

390
Brandt's Cormorant

300+ on Bird Island, 60+ flew N offshore and 30 on the ocean off Rodeo Beach

2
Double-crested Cormorant

Main lagoon

3
Great Blue Heron
5
Great Egret

A big exodus versus yesterday!

9
Snowy Egret
4
Black-crowned Night-Heron

An adult and 3 juveniles present

5
Turkey Vulture
1
Red-tailed Hawk
1
Downy Woodpecker

Female

1
Northern Flicker

Heard only

3
Pacific-slope Flycatcher
5
Black Phoebe
1
Warbling Vireo

Perhaps two

5
California Scrub-Jay
1
American Crow
6
Common Raven
40
Northern Rough-winged Swallow

10 present and a flocks of 6 & 24 flew through heading SE

Breeding Code
F Flyover (Observed)
20
Barn Swallow
3
Chestnut-backed Chickadee
4
Bushtit
1
Marsh Wren
5
Bewick's Wren
13
Wrentit
12
Western Bluebird

Including 7 flying in from the north

1
Swainson's Thrush

Heard only

2
American Robin
1
European Starling
8
House Finch
1
Purple Finch
14
American Goldfinch
5
Dark-eyed Junco (Oregon)

Simmonds Road

5
White-crowned Sparrow
4
Savannah Sparrow

Flock in the dunes at the western end of the main lagoon

11
Song Sparrow
3
California Towhee
9
Spotted Towhee
1
Brown-headed Cowbird

Juvenile

1
Orange-crowned Warbler
26
Common Yellowthroat
2
Yellow Warbler
2
Townsend's Warbler
3
Hermit Warbler

In a loose flock in cypress trees at Simmonds Road - all 1st winters I believe, two duller individuals (females) and a brighter male.

ML112093941

© William Legge

Average Quality

Hermit Warbler (I believe a 1st winter male) - Rodeo Lagoon, Marin County, California, USA - August 24, 2018

Age:
Immature
Sex:
Male
19
Wilson's Warbler

Significant influx!

 

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

Yes