SAN FRANCISCO WATERS PELAGIC – AUGUST 11, 2012

FROM PORT OF HALF MOON BAY.

This checklist is divided into 4 sections, 1) within the harbor 2) inshore waters in Half Moon Bay 3)offshore waters in San Mateo County and 4) offshore waters in San Francisco County. It is based on outputs generated by e-bird.

1) Pillar Pt. Harbor, San Mateo, US-CA

Aug 11, 2012 7:15 AM - 7:45 AM

Protocol: Traveling

2.0 mile(s)

Comments: Start and end of Alvaro's Adventure's SF pelagic

20 species

Surf Scoter 1

Brandt's Cormorant 80

Double-crested Cormorant 120

Pelagic Cormorant 1

Brown Pelican 20

Great Blue Heron 1

Great Egret 1

Snowy Egret 1

Black-crowned Night-Heron 1

Black Oystercatcher 8

Black Turnstone 20

Surfbird 1

Heermann's Gull 24

Western Gull 260

California Gull 20

Elegant Tern 24

Pigeon Guillemot 6

Rock Pigeon 20

Eurasian Collared-Dove 2

Brewer's Blackbird 2

2) Half Moon Bay--inshore bay, San Mateo, US-CA Aug 11, 2012 7:30 AM - 8:00 AM

Protocol: Traveling

5.0 mile(s)

Comments: Alvaro's Adventures SF pelagic.

13 species

Common Loon 2

Yellow-billed Loon 1 Dull plumage, so first cycle bird. First with a Common Loon. - larger, pale bill, upturned gonys, held head up at angle, bump on forehead, pale area on neck sides to side of nape, pale above eye. Offshore enough that very unlikely that it can be seen from shore unless steady calm weather. Many photos were taken, mine quite bad.

Western Grebe 8

Brandt's Cormorant 12

Brown Pelican 6

Red-necked Phalarope 2

Heermann's Gull 20

Western Gull 30

California Gull 12

Elegant Tern 6

Common Murre 6

Pigeon Guillemot 1

Marbled Murrelet 2

3) Offshore pelagic (northern SM Co.), San Mateo, US-CA Aug 11, 2012 8:00 AM - 12:45 PM

Protocol: Traveling

40.0 mile(s)

Comments: Alvaro's Adventures San Francisco pelagic.

21 species

Laysan Albatross 1 juvenile. photos; perhaps the same bird as was seen in San Francisco waters earlier, but that bird not attracted to the boat. This one was. Radically different behavior.

Black-footed Albatross 40

Pink-footed Shearwater 60

Buller's Shearwater 1

Sooty Shearwater 350

Fork-tailed Storm-Petrel 1

Ashy Storm-Petrel 6

Red-necked Phalarope 35

Red Phalarope 1

Sabine's Gull 1

Western Gull 200

California Gull 2

Arctic Tern 1

Elegant Tern 3

South Polar Skua 1

Pomarine Jaeger 2

Common Murre 300

Cassin's Auklet 1

Rhinoceros Auklet 45

Tufted Puffin 1

Mourning Dove 1 20 miles offshore!

4) Pioneer Sea Canyon (SF Co.), San Francisco, US-CA Aug 11, 2012 10:30 AM - 3:00 PM

Protocol: Traveling

40.0 mile(s)

Comments: Alvaro's Adventures San Francisco pelagic

21 species

Laysan Albatross 1 Perhaps same individual as seen later in San Mateo waters, but this one a fly by, not at all interested in boat or chum. Second bird a "friendly" came right in.

Black-footed Albatross 45

Northern Fulmar 8

Pink-footed Shearwater 80

Buller's Shearwater 1

Sooty Shearwater 800

Leach's Storm-Petrel 1 Great views of bird with pale rump. Molting inner primaries, came in close to the boat.

Ashy Storm-Petrel 40

Red-necked Phalarope 6

Red Phalarope 35

Sabine's Gull 12

Western Gull 80

California Gull 1

Common Tern 1

Arctic Tern 6

South Polar Skua 1 – different molt (based on photos) than San Mateo county bird!

Pomarine Jaeger 8

Long-tailed Jaeger 1

Common Murre 2

Cassin's Auklet 4

Rhinoceros Auklet 10

MAMMALS SEEN:

Humpback Whale

Pacific White-sided Dolphin

Northern Right Whale Dolphin

Harbor Porpoise

California Sea Lion

Steller’s Sea Lion

Also – Mola mola, Ocean Sunfish.

245 Granelli Ave. Half Moon Bay, CA. 94019. alvarosadventures.com 650-504-7779