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Checklist S40629071

 
Location
Rodeo Lagoon, Marin County, California, US ( Map ) ( Hotspot )
Date and Effort
Mon Nov 20, 2017 7:20 AM
Protocol:
Traveling
Party Size:
1
Duration:
3 hour(s)
Distance:
2.5 mile(s)
Observers:
William Legge
Comments:
Wind calm/very light E, overcast with high clouds, 13C/56F and a calm ocean. 50 minute sea watch from Rodeo Beach followed by a circuit of the main lagoon. Mammals of note: 3 River Otters in the main lagoon plus 2 Bottlenose Dolphins and a Harbor Seal offshore. Good movement of larger gulls heading south along the coastline and lots loafing offshore. Other movement included a flock of c. 75 Eurasian Starling purposefully flying S high over the coastline. Good numbers of White-crowned Sparrows suggesting an increase overnight along with Golden-crowned Kinglets.
Species
73 species (+2 other taxa) total
5
Mallard
12
Ring-necked Duck

Eastern end of the main lagoon

20
Surf Scoter

3 females/1st winters on the main lagoon, 6 on the ocean off Rodeo Beach and 11 flew S offshore

1
Bufflehead

Female/1st winter on the main lagoon

3
Hooded Merganser

Females/1st winters at the western end of the main lagoon

3
Red-breasted Merganser

2 females/1st winters on the main lagoon and a third flew S offshore

6
Ruddy Duck

Females/1st winters on the main lagoon

10
California Quail
6
Pied-billed Grebe

Main lagoon

4
Eared Grebe

Main lagoon

89
Western Grebe

On the ocean off Rodeo Beach

1
Clark's Grebe

On the ocean with Western Grebes

3
Anna's Hummingbird
3
Virginia Rail

Heard only from both lagoons

1
Sora

Heard only from the fringes of main lagoon near the footbridge leading to the beach

16
American Coot

Main lagoon

1
Black Oystercatcher

Bird Island

1
Killdeer
1
Wilson's Snipe

Main lagoon outlet channel

2
Greater Yellowlegs
1
Pomarine Jaeger

Harassing gulls offshore - left S

2
Pomarine/Parasitic Jaeger

Harassing gulls well offshore

24
Common Murre

22+ flew S offshore and 2 on the ocean off Rodeo Beach

3
Marbled Murrelet

Flew S offshore as a single and a pair

78
Heermann's Gull

On the ocean off Rodeo Beach

6
Mew Gull (American)

On the ocean off Rodeo Beach

230
Western Gull

130+ on Bird Island and 100+ flew S along the coastline

315
California Gull

275+ on the ocean off Rodeo Beach (some visiting the main lagoon) and 40+ flew S along the coastline

4
Herring Gull (American)

Flew S along the coastline, one visiting the main lagoon to wash and bathe

19
Iceland Gull (Thayer's)

13 on Bird Island and 6+ flew S along the coastline, some visiting the main lagoon to wash and bathe

20
Glaucous-winged Gull

6+ on Bird Island, and 14+ flew S some visiting the main lagoon.

300
gull sp.

Flew S along the coastline - 2/3rds immatures and mixture of California, Thayer's, Glaucous-winged, Western and Herring Gulls

6
Red-throated Loon

4+ on the ocean off Rodeo Beach and 2 flew S offshore

3
Common Loon

2 on the ocean off Rodeo Beach and 1 on the main lagoon

80
Brandt's Cormorant

50+ feeding offshore Rodeo Beach and 20 flew S and 10 N offshore

1
Pelagic Cormorant

On the ocean off Rodeo Beach

6
Double-crested Cormorant

3+ on the main lagoon and a flock of 3 flew S offshore

12
Brown Pelican

5 flew S offshore and 7 N

3
Great Blue Heron
4
Great Egret
2
Snowy Egret
1
Sharp-shinned Hawk

Flew S high along the coastline - migrant

Breeding Code
F Flyover (Observed)
1
Red-tailed Hawk
1
Belted Kingfisher

1st winter male

1
Merlin

Flew through SE

Breeding Code
F Flyover (Observed)
4
Black Phoebe
1
Say's Phoebe
3
Hutton's Vireo
2
California Scrub-Jay
4
American Crow
7
Common Raven
2
Chestnut-backed Chickadee
9
Bushtit
2
Red-breasted Nuthatch

In cypress trees/Monterey Pines on the northern side of the main lagoon

3
House Wren
4
Bewick's Wren
4
Golden-crowned Kinglet

In Monterey Pines - 3 behind Shed T1111 and 1 at the Pine at Field Road

9
Ruby-crowned Kinglet
10
Wrentit
1
Western Bluebird
1
Hermit Thrush
1
American Robin
84
European Starling

A flock of c. 75 flew S high above the coastline first thing (Migrants) and a flock of 9 present

Breeding Code
F Flyover (Observed)
16
House Finch
4
Lesser Goldfinch

Flew in from the NW high

2
Fox Sparrow (Sooty)
78
White-crowned Sparrow

Marked increase in numbers overnight

5
Golden-crowned Sparrow
8
Song Sparrow
4
California Towhee
1
Spotted Towhee
1
Red-winged Blackbird (California Bicolored)
12
Brewer's Blackbird
3
Common Yellowthroat
5
Yellow-rumped Warbler (Audubon's)
 

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

Yes