1 May

A great day at Boiler Bay today! Shorebirds was the main group of birds migrating. Large flocks were moving from early morning until afternoon. The flocks often consisted of 100 individuals but some as big as 2000! Most of the birds were Western Sandpiper but good numbers was also counted for species such as Dunlin, Dowitcher and Semipalmated Plover. Highlights of the day was of course the shorebird migration, a Tufted Puffin and two Franklin’s Gull. Counting time 05:50-14:50. 75217 seabirds of 54 species counted. Weather was nice with a blue sky for the whole day. The wind was moderate to strong from northwest 8 m/s (17mph).

036
Western/Least Sandpipers (Calidris mauri/minutilla)
Bird species list:
Greater White-fronted Goose (Anser albifrons) 496
Brant (Branta bernicla) 674
Gadwall (Anas strepera) 2
American Wigeon (Anas americana) 105
Mallard (Anas platyrhynchos) 8
Cinnamon Teal (Anas cyanoptera) 1
Northern Shoveler (Anas clypeata) 144
Northern Pintail (Anas acuta) 23
Green-winged Teal (Anas carolinensis) 223
Greater Scaup (Aythya marila) 92
Scaup sp. 3
Surf Scoter (Melanitta perspicillata) 5180
White-winged Scoter (Melanitta deglandi) 28
Black Scoter (Melanitta americana) 4
Long-tailed Duck (Clangula hyemalis) 1
Common Merganser (Mergus merganser) 23
Red-breasted Merganser (Mergus serrator) 34
Red-throated Loon (Gavia stellata) 22
Pacific Loon (Gavia pacifica) 2676
Common Loon (Gavia immer) 85
Horned Grebe (Podiceps auritus) 2
Red-necked Grebe (Podiceps grisegena) 12
Western Grebe (Aechmophorus occidentalis) 21
Sooty Shearwater (Puffinus griseus) 8
Brandt’s Cormorant (Phalacrocorax penicillatus) 89
Double-crested Cormorant (Phalacrocorax auritus) 87
Pelagic Cormorant (Phalacrocorax pelagicus) 66
Brown Pelican (Pelecanus occidentalis) 49
Black-bellied Plover (Pluvialis squatarola) 126
Semipalmated Plover (Charadrius semipalmatus) 130
Yellowlegs sp. 4
Whimbrel (Numenius phaeopus) 307
Long-billed Curlew (Numenius americanus) 10
Marbled Godwit (Limosa fedoa) 6
Curlew sp. 17
Ruddy Turnstone (Arenaria interpres) 2
Black Turnstone (Arenaria melanocephala) 24
Sanderling (Calidris alba) 10
Dunlin (Calidris alpina) 3285
Least Sandpiper (Calidris minutilla) 73
Western/Least Sandpiper 54730
Short-billed Dowitcher (Limnodromus griseus) 1
Dowitcher sp. 1061
Red-necked Phalarope (Phalaropus lobatus) 63
Common Murre (Uria aalge) 4350
Pigeon Guillemot (Cepphus columba) 99
Marbled Murrulet (Brachyramphus marmoratus) 127
Rhinocerous Auklet (Cerorhinca monocerata) 53
Tufted Puffin (Fratercula cirrhata) 1
Black-legged Kittiwake (Rissa tridactyla) 1
Bonaparte’s Gull (Chroicocephalus philadelphia) 31
Franklin’s Gull (Leucophaeus pipixcan) 2
Mew Gull (Larus canus) 4
Ring-billed Gull (Larus delawarensis) 9
Western Gull (Larus occidentalis) 297
California Gull (Larus californicus) 83
American Herring Gull (Larus smithsonianus) 27
Glaucous-winged Gull (Larus glaucescens) 24
Caspian Tern (Hydroprogne caspia) 102
Whale species list:
Gray Whale (Eschrichtius robustus) 6
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