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Checklist S44194822

 
Location
Rodeo Lagoon, Marin County, California, US ( Map ) ( Hotspot )
Date and Effort
Mon Apr 02, 2018 7:40 AM
Protocol:
Traveling
Party Size:
1
Duration:
2 hour(s), 50 minute(s)
Distance:
2.5 mile(s)
Observers:
William Legge
Comments:
Wind E, light shifting W, clear and sunny with temperatures rising to 15C/59F. 30 minute sea watch from Rodeo Beach followed by a circuit of the main lagoon. Mammals of note: 3+ Bottlenose Dolphins and 2+ California Sea Lions offshore and 1+ River Otters in the main lagoon.
Species
60 species (+2 other taxa) total
14
Canada Goose

Two pairs present and 10 flew over NW in groups of 7 & 3

5
Mallard
950
Surf Scoter

Good estimate of the flock off Rodeo Beach

1
Pied-billed Grebe

Main lagoon

1
Horned Grebe

On the ocean off Rodeo Beach - in breeding plumage

217
Western Grebe

On the ocean off Rodeo Beach

3
Clark's Grebe

With the Western Grebe flock offshore

1
Eurasian Collared-Dove

Heard only

8
Anna's Hummingbird
2
Black Oystercatcher

Bird Island

40
Common Murre

Estimate - most seen in flight heading N with a couple on the ocean off Bird Island

3
Pigeon Guillemot

On the ocean off Rodeo Beach/Bird Island

2
Mew Gull (American)

Adult and 1st winter offshore

35
Western Gull
30
California Gull

c. 20 feeding offshore and 10+ flew N well offshore

2
Glaucous-winged Gull

An adult and a 1st winter flew N offshore

5
Caspian Tern

3 feeding offshore and 2 flew over SE

9
Red-throated Loon

3 on the ocean off Rodeo Beach and 6 flew N offshore

10
Brandt's Cormorant

Flew S offshore

4
Pelagic Cormorant

One on the ocean and three seen in flight offshore

3
Double-crested Cormorant

Two on the main lagoon and one on the ocean

2
Snowy Egret
3
Turkey Vulture
2
Osprey

Flew over N - in view at the same time but not together

Breeding Code
F Flyover (Observed)
2
Red-tailed Hawk

An adult and a 2nd CY

1
Belted Kingfisher

Female

Age & Sex
Juvenile Immature Adult Age Unknown
Male
Female 1
Sex Unknown
1
Northern Flicker

Heard only

1
Northern Flicker (Red-shafted)
2
Peregrine Falcon

Two plus - A pale bird around Bird Island and a dark bird which flew over heading NW.

1
Steller's Jay

Heard only near the Headlands Visitor Center

1
California Scrub-Jay
8
American Crow
14
Common Raven
1
Northern Rough-winged Swallow

Flew through NW

Breeding Code
F Flyover (Observed)
1
Violet-green Swallow
4
Barn Swallow
20
Cliff Swallow

Probably more

2
Chestnut-backed Chickadee
3
Bushtit
1
Red-breasted Nuthatch

Heard calling only from the cypress trees on the north side of the main lagoon

1
Marsh Wren
4
Bewick's Wren
4
Ruby-crowned Kinglet
10
Wrentit
1
Western Bluebird
2
American Robin
4
European Starling
5
House Finch
13
Purple Finch
1
American Goldfinch
1
Fox Sparrow (Sooty)
4
White-crowned Sparrow
14
Song Sparrow
2
California Towhee
2
Spotted Towhee
2
Red-winged Blackbird (California Bicolored)
Breeding Code
S Singing Male (Possible)
1
Brewer's Blackbird
3
Orange-crowned Warbler
Breeding Code
S Singing Male (Possible)
5
Common Yellowthroat
Breeding Code
S Singing Male (Possible)
3
Yellow-rumped Warbler (Myrtle)
9
Yellow-rumped Warbler (Audubon's)
5
Wilson's Warbler
Breeding Code
S Singing Male (Possible)
 

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

Yes