AudioDateDownLeftRightUpIconClosefacebookReportGallerySettingsGiftLanguageGridLanguage iconListMapMenunoAudionoPhotoPhotoPlayPlusSearchStartwitterUserVideo

Checklist S38958336

 
Location
Rodeo Lagoon, Marin County, California, US ( Map ) ( Hotspot )
Date and Effort
Sat Sep 02, 2017 6:40 AM
Protocol:
Traveling
Party Size:
1
Duration:
3 hour(s), 5 minute(s)
Distance:
2.5 mile(s)
Observers:
William Legge
Comments:
Initially calm but a slight variable breeze developing, hazy sunshine with temperatures rising to 29C/84F - stifling! 20 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 1 Harbor Seal and 2 California Sea Lions offshore.
Species
57 species (+2 other taxa) total
13
Mallard
6
Northern Pintail

In a single flock flew in off the ocean, landed in the middle of the main lagoon. Stayed for 20 minutes before being spooked by Brown Pelicans. Left high to the south over the Headlands.

21
California Quail
1
Pied-billed Grebe

Continuing juvenile on the main lagoon

1
Eurasian Collared-Dove

On wires near the Fire Station

61
Vaux's Swift

Flew through heading SE in several flocks in a 30 minute period between 9:10-9:40am, with some wheeling down to drink at the main lagoon.

Breeding Code
F Flyover (Observed)
1
White-throated Swift
3
Anna's Hummingbird
4
Virginia Rail

Heard only - 3 from the main lagoon and 1 from the inner lagoon

1
Black Oystercatcher

Bird Island

1
Spotted Sandpiper

Presumably yesterday's bird at the western shoreline of the main lagoon

1
Greater Yellowlegs

At the western shore of the main lagoon first thing, but did not stay long

1
Pigeon Guillemot

Flew N offshore

98
Heermann's Gull

80 on Bird Island and 18 on the ocean off Rodeo Beach

25
Western Gull
5
California Gull

Visiting the main lagoon or on ocean

1
Red-throated Loon

Adult in breeding plumage on the ocean just off Rodeo Beach

47
Brandt's Cormorant

46+ flew N offshore and 1 on Bird Island

3
Pelagic Cormorant

1 on the ocean off Rodeo Beach and 2 flew N offshore

73
Double-crested Cormorant

6 on the main lagoon, and 65 flew over SE in flocks of 46, 1, and 18 and 2 flew N offshore.

Breeding Code
F Flyover (Observed)
551
Brown Pelican

370 on Bird Island, up to 80 washing on the main lagoon throughout the morning, and 86 flew N and 15 S along the coastline in 20 minutes of sea watching

3
Great Blue Heron
2
Great Egret
2
Snowy Egret
1
Turkey Vulture
1
Red-tailed Hawk
1
Belted Kingfisher

Juvenile

3
Downy Woodpecker
1
Nuttall's Woodpecker
2
Pacific-slope/Cordilleran Flycatcher (Western Flycatcher)

In willows/scrub on the south side of the lagoon (Lagoon Trail)

4
Black Phoebe
2
Hutton's Vireo
4
California Scrub-Jay
2
Common Raven
12
Northern Rough-winged Swallow

Single flock flew through SSE

Breeding Code
F Flyover (Observed)
5
Barn Swallow

Flew through S

Breeding Code
F Flyover (Observed)
3
Chestnut-backed Chickadee
1
House Wren

In scrub near the SW corner of the main lagoon

1
Marsh Wren
4
Bewick's Wren
9
Wrentit
5
Western Bluebird
2
Swainson's Thrush
4
European Starling
5
Cedar Waxwing

Including several juveniles

3
House Finch
1
Purple Finch
3
White-crowned Sparrow
1
Savannah Sparrow
13
Song Sparrow
1
California Towhee
2
Spotted Towhee
7
Tricolored Blackbird

Flyovers - 2 heading NE and a flock of 5 flying SE

Breeding Code
F Flyover (Observed)
2
Orange-crowned Warbler
1
Orange-crowned Warbler (Gray-headed)
15
Common Yellowthroat
1
American Redstart

Adult female seen well in the willows on the south side of the main lagoon (midway along Lagoon Trail)

Age & Sex
Juvenile Immature Adult Age Unknown
Male
Female 1
Sex Unknown
1
Townsend's Warbler

Female/1st winter in the cypress tree on south side of the main lagoon

6
Wilson's Warbler
 

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

Yes