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Checklist S48330777

 
Location
Rodeo Lagoon, Marin County, California, US ( Map ) ( Hotspot )
Date and Effort
Thu Sep 06, 2018 7:35 AM
Protocol:
Traveling
Party Size:
1
Duration:
3 hour(s), 25 minute(s)
Distance:
2.5 mile(s)
Observers:
William Legge
Comments:
Wind W, initially very calm, but increased to a 5-10mph sustained wind by mid-morning, overcast with low clouds/fog above 350 feet, 14C/58F. Mammals of note: 1 Harbor Seal offshore and 4+ River Otters in the main lagoon.
Species
62 species (+1 other taxa) total
27
Mallard
7
Surf Scoter

On the ocean off Rodeo Beach

27
California Quail
1
Western Grebe

On the ocean off Rodeo Beach

2
Virginia Rail

Heard only - one from each lagoon

2
Semipalmated Plover

On the northern shore of the main lagoon

Age & Sex
Juvenile Immature Adult Age Unknown
Male
Female
Sex Unknown 2
1
Least Sandpiper

Western shore of the main lagoon

1
Western Sandpiper

Main lagoon outlet channel

11
Red-necked Phalarope

Eastern end of the main lagoon

1
Spotted Sandpiper

Initially feeding in the main lagoon outlet channel

1
Parasitic Jaeger

Harassing Elegant Terns offshore

350
Heermann's Gull

Most on Bird Island

1
Ring-billed Gull

1st winter present

20
Western Gull
8
California Gull

Main lagoon - mostly 1st winters

1
Caspian Tern
25
Elegant Tern

Feeding offshore and working their way north

1
Common Loon

On the ocean off Rodeo Beach - in non-breeding plumage

195
Brandt's Cormorant

150+ on Bird Island, 25+ flew N offshore and 20 on the ocean off Rodeo Beach

2
Pelagic Cormorant

On the ocean or seen in flight offshore

7
Double-crested Cormorant

6+ at the main lagoon and 1 flew N offshore

378
Brown Pelican

295 on Bird Island, up to 30 visiting the main lagoon at any one time and 53 flew N offshore

3
Great Blue Heron
5
Great Egret
14
Snowy Egret
1
Black-crowned Night-Heron

Juvenile

1
Red-tailed Hawk
2
Northern Flicker

Heard only

1
Western Wood-Pewee

Up at Simmonds Road

1
Willow Flycatcher
2
Pacific-slope Flycatcher
8
Pacific-slope/Cordilleran Flycatcher (Western Flycatcher)
6
Black Phoebe
1
Hutton's Vireo
2
Warbling Vireo
5
California Scrub-Jay
1
American Crow
5
Common Raven
12
Northern Rough-winged Swallow
1
Tree Swallow
10
Barn Swallow
1
Cliff Swallow
3
Chestnut-backed Chickadee
1
House Wren
4
Bewick's Wren
11
Wrentit
12
European Starling
11
House Finch
2
Purple Finch
3
American Goldfinch
6
White-crowned Sparrow
1
Savannah Sparrow
16
Song Sparrow
1
Lincoln's Sparrow

First of the 2018 Fall along Lagoon Trail (south side of the main lagoon)

3
California Towhee
6
Spotted Towhee
1
Red-winged Blackbird
4
Brown-headed Cowbird

A flock of juveniles - left NW

25
Common Yellowthroat

Exact count

20
Yellow Warbler

Exact count

1
Black-throated Gray Warbler

1st winter in willows along Lagoon Trail (south side of the main lagoon)

2
Townsend's Warbler

Simmonds Road Cypress trees

8
Wilson's Warbler
 

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

Yes