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Checklist S43184091

 
Location
Rodeo Lagoon, Marin County, California, US ( Map ) ( Hotspot )
Date and Effort
Sun Feb 25, 2018 7:15 AM
Protocol:
Traveling
Party Size:
1
Duration:
2 hour(s), 5 minute(s)
Distance:
1.25 mile(s)
Observers:
William Legge
Comments:
Wind E, light, clear and sunny, frosty with temperatures rising to 10C/50F. 25 minute sea watch from Rodeo Beach followed by a circuit of the main lagoon. Mammals of note: 1+ River Otter in the main lagoon, 6 Black-tailed Deer and offshore 10+ California Sea Lions around the green buoy.
Species
53 species total
1
Canada Goose

Flew in from the N and landed on Bird Island

10
Mallard
8
Ring-necked Duck

Main lagoon, including 1 adult male

335
Surf Scoter

Offshore into two distinct rafts off Rodeo Beach, plus a 1st winter male on the main lagoon briefly

1
Long-tailed Duck

The continuing adult male, but further offshore today and mixed in with the Surf Scoter flock north of the green buoy north west of Rodeo Beach (versus the flock off Bird Island)

Age & Sex
Juvenile Immature Adult Age Unknown
Male 1
Female
Sex Unknown
12
Bufflehead

Main lagoon, including one adult male

4
Common Goldeneye

Main lagoon - 3 1st winter males and a female

Age & Sex
Juvenile Immature Adult Age Unknown
Male 3
Female 1
Sex Unknown
2
Hooded Merganser

Females on the main lagoon

5
Pied-billed Grebe

Main lagoon

1
Eared Grebe

Main lagoon

120
Western Grebe

On the ocean off Rodeo Beach

4
Anna's Hummingbird
2
Virginia Rail

Heard only from the inner lagoon

1
Black Oystercatcher

Bird Island

1
Wilson's Snipe

Feeding on the shoreline of the main lagoon outlet channel

7
Common Murre

On the ocean off Rodeo Beach

20
Western Gull
18
Iceland Gull (Thayer's)

Bird Island

4
Glaucous-winged Gull

Offshore, plus one on Bird Island

31
Red-throated Loon

27+ on the ocean off Rodeo Lagoon and 3 flew S and 1 N offshore

2
Brandt's Cormorant

Flew S offshore

2
Double-crested Cormorant

Main lagoon

3
Great Egret
3
Snowy Egret
2
Black-crowned Night-Heron

Adults roosting in willows at the eastern end of the main lagoon. Unusual at this site in February.

Age & Sex
Juvenile Immature Adult Age Unknown
Male
Female
Sex Unknown 2
1
Northern Harrier

Female/1st winter hunting in the hills north of Miwok Trail

1
Cooper's Hawk

1st winter

1
Red-tailed Hawk
1
Belted Kingfisher

The continuing female

Age & Sex
Juvenile Immature Adult Age Unknown
Male
Female 1
Sex Unknown
1
Hairy Woodpecker

Heard only

3
Black Phoebe
3
California Scrub-Jay
2
American Crow
2
Common Raven
1
Bushtit
3
Bewick's Wren
3
Ruby-crowned Kinglet
6
Wrentit
5
Western Bluebird
3
Hermit Thrush
11
European Starling
5
House Finch
4
Purple Finch
2
Dark-eyed Junco (Oregon)
46
White-crowned Sparrow
4
Golden-crowned Sparrow
5
Song Sparrow
4
California Towhee
3
Spotted Towhee
5
Brewer's Blackbird
1
Common Yellowthroat
7
Yellow-rumped Warbler (Audubon's)
1
House Sparrow

Adult male feeding with White-crowned Sparrows at the picnic tables on the north side of the main lagoon. A scarce species at this site and the first for almost 6-months!

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

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

Yes