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Checklist S48420032

 
Location
Rodeo Lagoon, Marin County, California, US ( Map ) ( Hotspot )
Date and Effort
Mon Sep 10, 2018 7:30 AM
Protocol:
Traveling
Party Size:
1
Duration:
3 hour(s)
Distance:
2.5 mile(s)
Observers:
William Legge
Comments:
Wind E, very light, clear and sunny with temperatures rising to 21C/70F. 15 minute sea watch from Rodeo Beach, followed by a circuit of the main lagoon. Mammals of note: 3+ Bottlenose Dolphins just off Rodeo Beach.
Species
55 species (+1 other taxa) total
1
Cinnamon Teal

The continuing eclipse male with the Mallard flock for its second day

34
Mallard
1
Surf Scoter

Male on the ocean - left S

3
California Quail
1
Eared Grebe

Main lagoon

2
Western Grebe

On the ocean off Rodeo Beach

1
Eurasian Collared-Dove

Flew over heading SE

Breeding Code
F Flyover (Observed)
3
Anna's Hummingbird
2
Virginia Rail

Heard only - one from each lagoon

2
Black Oystercatcher

Bird Island

13
Red-necked Phalarope

Eastern end of the main lagoon

2
Common Murre

On the ocean off Rodeo Beach

350
Heermann's Gull

Roosting on Bird Island

25
Western Gull
9
California Gull

Six 1st winters at the main lagoon and 3 flew over SE

1
Caspian Tern

Flew over SE with fish

350
Brandt's Cormorant

325+ on Bird Island and 25+ on the ocean or seen in flight offshore

11
Double-crested Cormorant

6+ on the main lagoon and 3 flew N offshore and 2 flew over SE

460
Brown Pelican

350+ on Bird Island, up to 100+ visiting the main lagoon at anyone time and 10+ flew N offshore. One blue banded juvenile (blue band with white code N81.

ML114385281

© William Legge

Banded Brown Pelican - Rodeo Lagoon, Marin County, California, USA - September 10, 2018

Age:
Juvenile
Sex:
Sex Unknown
3
Great Blue Heron
7
Great Egret
13
Snowy Egret
5
Black-crowned Night-Heron

Roosting in willows

Age & Sex
Juvenile Immature Adult Age Unknown
Male
Female
Sex Unknown 4 1
1
Turkey Vulture
2
Red-tailed Hawk
2
Pacific-slope Flycatcher
3
Pacific-slope/Cordilleran Flycatcher (Western Flycatcher)
3
Black Phoebe
1
Say's Phoebe

First of the 2018 Fall season at this location

ML114385691

© William Legge

Average Quality

Say's Phoebe - Rodeo Lagoon, Marin County, California, USA - September 10, 2018

Age:
Unknown
Sex:
Sex Unknown
2
Hutton's Vireo
1
Warbling Vireo
5
California Scrub-Jay
2
American Crow
1
Common Raven
6
Barn Swallow
1
House Wren

Heard only

4
Bewick's Wren
8
Wrentit
13
European Starling
6
House Finch
1
Lesser Goldfinch
4
American Goldfinch
2
Dark-eyed Junco (Oregon)
3
White-crowned Sparrow
7
Song Sparrow
1
California Towhee
3
Spotted Towhee
7
Tricolored Blackbird

In two groups: 3 (2 males) come in high and landed with Starling at the Headlands Institute Buildings and a flock of 4 males flew over later SW. First of the 2018 Fall dispersal.

2
Orange-crowned Warbler
14
Common Yellowthroat
22
Yellow Warbler
1
Chestnut-sided Warbler

The continuing 1st winter (female?) found by Holly Thomas yesterday, and performing well today along Lagoon/Coastal Trail midway down the south side of the main lagoon, at the Eucalyptus Tree grove and the adjoining Cypress trees and willows in that general area.

ML114388171

© William Legge

Average Quality

Chestnut-sided Warbler - Rodeo Lagoon, Marin County, California, USA - September 10, 2018

Age:
Immature
Sex:
Female
ML114388341

© William Legge

Average Quality

Chestnut-sided Warbler - Rodeo Lagoon, Marin County, California, USA - September 10, 2018

Age:
Immature
Sex:
Female
ML114388451

© William Legge

Average Quality

Chestnut-sided Warbler - Rodeo Lagoon, Marin County, California, USA - September 10, 2018

Age:
Immature
Sex:
Female
1
Black-throated Gray Warbler

The continuing adult male up at the Simmonds Road Cypress trees

3
Townsend's Warbler

Two up at the Simmonds Rd. Cypress Trees and one in willows along Lagoon Trail

1
Hermit Warbler

1st winter/female in the Monterey Pine at the junction Field and Simmonds Roads

8
Wilson's Warbler
 

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

Yes