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Checklist S43757781

 
Location
Rodeo Lagoon, Marin County, California, US ( Map ) ( Hotspot )
Date and Effort
Sun Mar 18, 2018 7:30 AM
Protocol:
Traveling
Party Size:
2
Duration:
3 hour(s)
Distance:
2.5 mile(s)
Observers:
David Wiechers List , William Legge
Comments:
Wind NE, light, hazy sunshine, with temperatures rising to 12C/54F. 45 minute sea watch from Rodeo Beach followed by a circuit of the main lagoon. Mammals of note: 1+ River Otter in the main lagoon, and offshore, 2 Harbor Seal and 10+ California Sea Lions (on and around the green buoy).
Species
55 species total
12
Canada Goose

7 flew into the main lagoon (4 leaving later), and a flock of 5 flew S high along the coastline

3
Mallard
7
Ring-necked Duck

Main lagoon - including 3 adult males

850
Surf Scoter

Large raft of 770+ on the ocean west/northwest of Rodeo Beach and another 80 on the ocean off Bird Island.

1
Long-tailed Duck

Female/1st winter flew in from the south and landed in the Surf Scoter flock WNW of Rodeo Beach.

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

Female/1st winter on the main lagoon

4
Common Goldeneye

Two 1st winter males and two females at the western end of the main lagoon

3
Hooded Merganser

A pair and a single female on the main lagoon

3
California Quail
4
Pied-billed Grebe

Main lagoon

1
Eared Grebe

Main lagoon

8
Western Grebe

On the off Rodeo Beach

1
Clark's Grebe

On the ocean offshore Rodeo Beach

7
Anna's Hummingbird
60
Common Murre

Most flying N offshore with 10+ on the ocean off Rodeo Beach

6
Mew Gull (American)

3 on the ocean, 2 1st winters visited the main lagoon briefly and an adult flew N offshore

25
Western Gull
2
California Gull

Flew over SE

1
Iceland Gull (Thayer's)

1st winter on Bird Island

1
Glaucous-winged Gull

1st winter offshore

16
Red-throated Loon

11+ on the ocean off Rodeo Beach and 4 flew N and 1 S offshore

100
Brandt's Cormorant

90+ flew S and 10+ N offshore

9
Pelagic Cormorant

7+ on the ocean off Rodeo Beach and 2 flew N offshore

2
Double-crested Cormorant

Main lagoon

2
Great Blue Heron

Flew over SE high and loosely together

Breeding Code
F Flyover (Observed)
3
Great Egret
2
Snowy Egret
1
Black-crowned Night-Heron

Roosting in willows at the main lagoon

Age & Sex
Juvenile Immature Adult Age Unknown
Male
Female
Sex Unknown 1
9
Turkey Vulture
4
Red-tailed Hawk

Including a 1st winter

1
Northern Flicker

Heard only

3
Black Phoebe
2
Hutton's Vireo
18
American Crow

Including 11 flying over high NW in groups of 1, 5 & 5

Breeding Code
F Flyover (Observed)
8
Common Raven
3
Violet-green Swallow
5
Barn Swallow
2
Chestnut-backed Chickadee
3
Bushtit
7
Bewick's Wren
4
Ruby-crowned Kinglet
4
Wrentit
6
Western Bluebird
2
American Robin
9
European Starling
16
House Finch
7
Purple Finch
12
White-crowned Sparrow
12
Song Sparrow
3
California Towhee
1
Spotted Towhee
2
Red-winged Blackbird (California Bicolored)
1
Orange-crowned Warbler
Breeding Code
S7 Singing Male Present 7+ days (Probable)
8
Common Yellowthroat
10
Yellow-rumped Warbler (Audubon's)
 

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

Yes