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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

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

5
950

Good estimate of the flock off Rodeo Beach

1

Main lagoon

1

On the ocean off Rodeo Beach - in breeding plumage

217

On the ocean off Rodeo Beach

3

With the Western Grebe flock offshore

1

Heard only

8
2

Bird Island

40

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

3

On the ocean off Rodeo Beach/Bird Island

2

Adult and 1st winter offshore

35
30

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

2

An adult and a 1st winter flew N offshore

5

3 feeding offshore and 2 flew over SE

9

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

10

Flew S offshore

4

One on the ocean and three seen in flight offshore

3

Two on the main lagoon and one on the ocean

2
3
2

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

Breeding Code
F Flyover (Observed)
2

An adult and a 2nd CY

1

Female

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

Heard only

1
2

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

1

Heard only near the Headlands Visitor Center

1
8
14
1

Flew through NW

Breeding Code
F Flyover (Observed)
1
4
20

Probably more

2
3
1

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

1
4
4
10
1
2
4
5
13
1
1
4
14
2
2
2
Breeding Code
S Singing Male (Possible)
1
3
Breeding Code
S Singing Male (Possible)
5
Breeding Code
S Singing Male (Possible)
3
9
5
Breeding Code
S Singing Male (Possible)
 

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

Yes