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Checklist S44224084

 
Location
Rodeo Lagoon, Marin County, California, US ( Map ) ( Hotspot )
Date and Effort
Tue Apr 03, 2018 7:20 AM
Protocol:
Traveling
Party Size:
1
Duration:
2 hour(s), 30 minute(s)
Distance:
2.5 mile(s)
Observers:
William Legge
Comments:
Wind W, light, overcast with low clouds, with temperatures rising to 12F/54F. 30 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 1 Harbor Seal and 6+ California Sea Lions.
Species
55 species total
6
3
1400

A large drawn out raft on the ocean off Rodeo Beach - estimate count to the nearest 50. Couldn't pick out anything usual with them today

1

Adult male at the western end of the main lagoon. My first record of this species for the lagoon this year.

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

East of the Marin Headlands Visitor Center

1

Main lagoon

20

On the ocean off Rodeo Beach

10
3

In flight off Rodeo Beach

200

A feeding flock of 150+ on the ocean off Rodeo Beach and 50+ flew N offshore

2

On the ocean off Bird Island

35
20

Feeding flock offshore

4

Visited the main lagoon briefly and left SE

5

3 on the ocean off Rodeo Beach and 2 flew S offshore

135

A feeding flock of 125+ on the ocean off Rodeo Beach and 10+ flew N

7

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

4

Main lagoon

2
1

Perhaps two - adult

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

Soaring over the quarry on the north side of the main lagoon.

2
1

Female

1
1

Heard only

1

The continuing male over and around the inner lagoon catching dragonflies.

3
15

13 flew over NW in flock of 1, 3, 4, & 5 and 2+ present

Breeding Code
F Flyover (Observed)
8
2
3
18
1
2
Breeding Code
S Singing Male (Possible)
2
8
1
1
2
7
11
12
1
1
3
4
11
1
4
Breeding Code
S Singing Male (Possible)
1
1
Breeding Code
S7 Singing Male Present 7+ days (Probable)
4
Breeding Code
S7 Singing Male Present 7+ days (Probable)
2
5
Breeding Code
S Singing Male (Possible)
 

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

Yes