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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
12

Eastern end of the main lagoon

20

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

1

Female/1st winter on the main lagoon

3

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

3

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

6

Females/1st winters on the main lagoon

10
6

Main lagoon

4

Main lagoon

89

On the ocean off Rodeo Beach

1

On the ocean with Western Grebes

3
3

Heard only from both lagoons

1

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

16

Main lagoon

1

Bird Island

1
1

Main lagoon outlet channel

2
1

Harassing gulls offshore - left S

2
Pomarine/Parasitic Jaeger

Harassing gulls well offshore

24

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

3

Flew S offshore as a single and a pair

78

On the ocean off Rodeo Beach

6

On the ocean off Rodeo Beach

230

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

315

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

4

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

19

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

20

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

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

3

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

80

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

1

On the ocean off Rodeo Beach

6

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

12

5 flew S offshore and 7 N

3
4
2
1

Flew S high along the coastline - migrant

Breeding Code
F Flyover (Observed)
1
1

1st winter male

1

Flew through SE

Breeding Code
F Flyover (Observed)
4
1
3
2
4
7
2
9
2

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

3
4
4

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

9
10
1
1
1
84

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
4

Flew in from the NW high

2
78

Marked increase in numbers overnight

5
8
4
1
1
12
3
5
 

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

Yes