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Checklist S48113344

 
Location
Rodeo Lagoon, Marin County, California, US ( Map ) ( Hotspot )
Date and Effort
Mon Aug 27, 2018 7:35 AM
Protocol:
Traveling
Party Size:
1
Duration:
3 hour(s)
Distance:
2.5 mile(s)
Observers:
William Legge
Comments:
Wind WSW, light to moderate, overcast with low clouds, 12C/54F. 20 minute sea watch from Rodeo Beach followed by a circuit of the main lagoon. Mammals of note: 5 River Otters in the main lagoon and a Sonoma Chipmunk. Good number of expected passerine migrants with new birds every day at the moment.
Species
55 species (+1 other taxa) total
21
12

On the ocean off Rodeo Beach

35

Family groups of 18, 5 & 12

2
1

Heard only from the inner lagoon

11

Western shore of the main lagoon

7

Western shoreline of the main lagoon

6

In various plumages - 4 at the eastern end and 2 at the western end of the main lagoon

1

On mud midway down the main lagoon (south side)

3

Two on the ocean off Rodeo Beach and one on Bird Island

425

Most roosting on Bird Island

30
10

Main lagoon - 6 juveniles and 4 adults

4
1

On the ocean just off Rodeo Beach - in breeding plumage

150

100 on Bird Island, 40+ flew N offshore and 10+ on the ocean

9

4 on the main lagoon and 3 flew N and 2 SW offshore

361

171 flew N along the coastline, up to 150+ visiting the main lagoon at one time and 40 on Bird Island

2
4
6
3

2 juveniles and a 2nd CY bird

Age & Sex
Juvenile Immature Adult Age Unknown
Male
Female
Sex Unknown 2 1
2
2
1

Heard only

1

Field/Simmonds Road area

1
3
Pacific-slope/Cordilleran Flycatcher (Western Flycatcher)
5
3
2
3
8
1
15
1
3
12
3
3

Adult feeding two recently fledged young

Breeding Code
FL Recently Fledged Young (Confirmed)
2
8
2
11
3

Beach dunes

7
6
6
2
20
2
1

1st winter in cypress trees between Field and Simmonds Roads, just west of the Headlands Visitors Center Car Park

1

1st winter male - Simmonds Road cypress trees

2

1st winter females at the junction of Field and Simmonds Roads

ML112539411

© William Legge

Hermit Warbler (1st winter female) - Rodeo Lagoon, Marin County, California, USA - August 27, 2018

Age:
Immature
Sex:
Female
11
1

1st winter/female in scrub adjoining the quarry on the north side of the main lagoon. Scarce at this site!

ML112539081

© William Legge

Average Quality

Lazuli Bunting - Rodeo Lagoon, Marin County, California, USA - August 27, 2018

Age:
Unknown
Sex:
Female
ML112539231

© William Legge

Average Quality

Lazuli Bunting - Rodeo Lagoon, Marin County, California, USA - August 27, 2018

Age:
Unknown
Sex:
Female
 

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

Yes