Adak Bird List

Seasonal codes

  • Sp = Spring (March, April, May)
  • Su = Summer (June, July, August)
  • Fa = Fall (September, October, November)
  • Wi = Winter (December, January, February)

Abundance codes

  • C = Common (annual; you’re sure to see)
  • U = Uncommon (annual; likely to see)
  • R = Rare (annual; not guaranteed to see)
  • I = Irregular (not annual, but multiple records)
  • Ca = Casual (not annual; only a few records)
  • Ac = Accidental (only one record ever in that season)
  • Dashes indicate changes in status within a season

Bold* = Breeding

Sp

Su

Fa

Wi

DUCKS, GEESE, and SWANS

Emperor Goose

C-I

Ca

I-C

C

Snow Goose

Ca

Ac

Ac

Greater White-fronted Goose

I

Ca

Ac

Taiga Bean Goose or Tundra Bean Goose (unknown which species)

I

Brant

Ca

Ca

Ca

Ca

Cackling Goose

C

Ca

U

Ac

Tundra Swan (columbianus)

I

Ca

Ac

Tundra Swan (bewickii)

Ac

Ca

Whooper Swan

U-Ca

I

R

Baikal Teal

Ac

Garganey

Ca

Ca

Ac

Blue-winged Teal

Ac

Northern Shoveler*

R

R

R

R

Gadwall

I

Ca

I

I

Falcated Duck

Ca

Ca

Ac

Ac

Eurasian Wigeon

U

I

U

C

American Wigeon

I

Ca

Ca

Ca

Eastern Spot-billed Duck

Ca

Ca

Ac

Ca

Mallard*

C

C

C

C

Northern Pintail*

C

U

C

C

Green-winged Teal (carolinensis)

I

Ca

Ac

Ac

Green- winged Teal* (crecca)

C

C

C

C

Canvasback

Ca

Ac

Ca

I

Redhead

Ac

Ac

Common Pochard

Ca

Ca

Ac

Ca

Ring-necked Duck

Ca

Ac

Tufted Duck

U

I

R

U

Greater Scaup*

C

U

C

C

Lesser Scaup

I

Ca

Ac

Ac

Steller's Eider

I

Ac

Ca

I

King Eider

Ca

Ca

Ca

Ca

Common Eider*

U

C

U

U

Harlequin Duck

C

U

C

C

Surf Scoter

I

Ac

Ca

I

White-winged Scoter

C

I

C

C

Black Scoter

C

I

U

C

Long-tailed Duck

U

I

U

C

Bufflehead

C

I

U

C

Common Goldeneye

C

R

U

C

Barrow's Goldeneye

I

Ca

Ca

Smew

I

Ca

Ca

I

Hooded Merganser

Ca

Ac

Ca

Common Merganser (americanus) or Goosander (merganser)

I

I

I

I

Red-breasted Merganser*

C

C

C

C

GROUSE

Rock Ptarmigan*

C

C

C

C

GREBES

Horned Grebe

U

Ca

C

U

Red-necked Grebe

C

Ca

C

C

Western Grebe

Ac

CUCKOOS

Common Cuckoo

I

I

Oriental Cuckoo

Ac

SWIFTS

Fork-tailed Swift

Ac

RAILS and COOTS

American Coot

Ac

CRANES

Sandhill Crane

I

I

I

OYSTERCATCHERS

Black Oystercatcher*

C

C

C

U

LAPWINGS and PLOVERS

Black-bellied Plover

Ca

Ca

Ca

Pacific Golden-Plover

C

R

U

Common Ringed Plover

Ac

Semipalmated Plover*

C

C

R

Lesser Sand-Plover

Ca

Ca

Ca

SANDPIPERS, PHALAROPES, and ALLIES

Bristle-thighed Curlew

I

Ac

Whimbrel

I

Ca

Ca

Far Eastern Curlew

Ca

Ca

Bar-tailed Godwit

U

I

I

Black-tailed Godwit

Ca

Ac

Ruddy Turnstone

Ca-R

U

U-Ca

Black Turnstone

Ac

Ac

Great Knot

Ac

Red Knot

Ca

Ca

Ca

Ca

Ruff

Ca

Ca

Ca

Broad-billed Sandpiper

Ac

Sharp-tailed Sandpiper

Ca

U

Temminck's Stint

Ca

Ac

Ca

Long-toed Stint

Ca

Ac

Ac

Red-necked Stint

I

Ca

I

Sanderling

U

R

U

C

Dunlin

I

Ca

I

Ca

Rock Sandpiper*

C

C

C

C

Baird's Sandpiper

Ac

Ca

Ca

Little Stint

Ac

Ca

I

Least Sandpiper

Ca

Ac

Ac

Buff-breasted Sandpiper

Ca

Ca

Pectoral Sandpiper

Ca

Ac

R

Semipalmated Sandpiper

Ac

Western Sandpiper

Ca

I

I

Ac

Long-billed Dowitcher

Ca

U

Common Snipe

R

Ca

Ca

Wilson's Snipe

R

Ca

Terek Sandpiper

Ca

Common Sandpiper

Ca

Ca

Gray-tailed Tattler

Ca

Ca

I

Wandering Tattler

U

R

R

Lesser Yellowlegs

Ac

Ca

Spotted Redshank

Ca

Ca

Common Greenshank

I

Ac

Ca

Greater Yellowlegs

Ca

Wood Sandpiper

R

I

Ca

Ac

Marsh Sandpiper

Ca

Ca

Red-necked Phalarope*

U

C

I

Red Phalarope

Ca

Ca

Ca

JAEGERS

Pomarine Jaeger

Ca

Ca

Parasitic Jaeger*

C

C

U

Long-tailed Jaeger

Ca

AUKS, MURRES, and PUFFINS

Common Murre*

U

R

U

R

Thick-billed Murre

I

I

I

R

Pigeon Guillemot*

C

C

C

C

Long-billed Murrelet

Ac

Marbled Murrelet*

C

U

U

R

Kittlitz's Murrelet*

C

U

R

R

Ancient Murrelet

C

C

R

R

Cassin's Auklet

Ca

Ca

Ca

Parakeet Auklet

Ca

Ac

Ca

Ca

Least Auklet

Ca

Ca

Ca

Ca

Whiskered Auklet*

Ca

Ca

Ca

Ca

Crested Auklet

Ca

Ca

Ca

Ca

Horned Puffin*

I-C

C

C-I

I

Tufted Puffin*

I-C

C

C-I

I

GULLS and TERNS

Black-legged Kittiwake

R

R

C

Ca

Red-legged Kittiwake

Ca

Sabine's Gull

Ac

Ac

Bonaparte's Gull

Ac

Black-headed Gull

R

I

Ca

Black-tailed Gull

Ac

Mew Gull (brachyrhynchus or kamstchatschensis) (unknown which species)

I

Ca

Ca

I

Herring (Vega) Gull (vegae)

I

Ca

Ca

I

Iceland Gull

Ac

Ca

R

Slaty-backed Gull

Ca

Ac

Ca

Ca

Glaucous-winged Gull*

C

C

C

C

Glaucous Gull

R

Ca

Ca

R

Aleutian Tern*

Ac-C

C

Ca

White-winged Tern

Ac

Common Tern

Ac

(Ac)

Arctic Tern*

Ac-C

C

U-Ac

LOONS

Red-throated Loon

I

I

I

Ca

Arctic Loon

U

Ac

Ca

Ac

Pacific Loon

U

Ca

R

I

Common Loon*

C

C

U

R

Yellow-billed Loon

Ca

Ca

Ca

Ca

TUBENOSES

Laysan Albatross

R

Ca

R

Black-footed Albatross

Ca

Ca

Ca

Fork-tailed Storm-Petrel*

U

U

U

Leach's Storm-Petrel

R

R

R

Northern Fulmar

R

R

I

Cook's Petrel

Ac

Short-tailed Shearwater

R

R

R

Sooty Shearwater

R

R

R

CORMORANTS

Red-faced Cormorant*

U

U

U

U

Pelagic Cormorant*

C

C

C

C

Double-crested Cormorant

Ac

Ac

Ac

HERONS, BITTERNS, and ALLIES

Great Egret

Ca

Ca

Ca

Ca

Black-crowned Night-heron

Ac

OSPREYS

Osprey

Ca

Ca

Ac

HAWKS, EAGLES, and ALLIES

Northern Harrier

I

I

I

Eurasian Sparrowhawk

Ac

(Ac)

Bald Eagle*

C

C

C

C

Rough-legged Hawk

Ac

Ca

Ca

OWLS

Snowy Owl

I

Ca

I

I

Short-eared Owl*

U

U

U

U

Boreal Owl

Ac

KINGFISHERS

Belted Kingfisher

Ac

FALCONS

Eurasian Kestrel

Ac

Ac

Merlin

Ca

I

Gyrfalcon*

R

R

R

R

Peregrine Falcon* (pealei)

U

U

C

U

SHRIKES

Northern Shrike

Ca

Ca

Ca

CROWS and JAYS

Common Raven*

C

C

C

C

LARKS

Eurasian Skylark

Ca

Ca

SWALLOWS

Bank Swallow

Ca

Ca

Ca

Tree Swallow

Ca

Ca

Ac

Barn Swallow

Ca

Ac

Cliff Swallow

Ca

WRENS

Pacific Wren*

C

C

C

U

LEAF WARBLERS

Wood Warbler

Ac

Dusky or Naumann's Warbler (unknown which species)

Ac

Dusky WarblerAc
Naumann's WarblerCa

Kamchatka Leaf Warbler

Ac

OLD WORLD FLYCATCHERS and CHATS

Gray-streaked Flycatcher

Ca

Siberian Rubythroat

Ac

Taiga Flycatcher

Ac

Northern Wheatear

Ca

Ac

Ca

THRUSHES

Hermit Thrush

Ac

Eyebrowed Thrush

Ca

Ca

Ac

Dusky Thrush

(Ac)

Ca

American Robin

Ac

Ac

WAXWINGS

Bohemian Waxwing

Ca

Ca

WAGTAILS and PIPITS

Eastern Yellow Wagtail

Ca

Ac

Ca

Gray Wagtail

Ac

Ac

White Wagtail (lugens )

I

Ca

Ca

Olive-backed Pipit

Ca

Ca

Red-throated Pipit

Ac

American Pipit

Ca

Ca

I

Ca

FINCHES

Brambling

I

I

I

Hawfinch

I

Ca

Common Rosefinch

Ca

Pine Grosbeak

Ca

Asian Rosy-Finch

Ac

Gray-crowned Rosy-Finch*

C

C

C

C

Gray-crowned Rosy-Finch (littoralis)

Ac

Oriental Greenfinch

Ca

Common Redpoll

I

Ca

I

I

Hoary Redpoll

Ca

Ac

Ca

Ca

Red Crossbill

Ac

White-winged Crossbill

Ac

Pine Siskin*

I

I

I

I

LONGSPURS and SNOW BUNTINGS

Lapland Longspur*

Ac-C

C

C-Ac

Ac

Snow Bunting*

C

C

C

C

McKay's Bunting

Ca

Ac

OLD WORLD BUNTINGS

Rustic Bunting

Ca

Ca

NEW WORLD SPARROWS and ALLIES

American Tree Sparrow

Ac

Savannah SparrowCaCaCa
Song Sparrow*CCCC
White-crowned SparrowAc
Golden-crowned SparrowAcAc

Dark-eyed Junco

Ac

BLACKBIRDS

Rusty Blackbird

Ac

WOOD-WARBLERS

Yellow Warbler

Ac

Blackpoll Warbler

Ac

Yellow-rumped Warbler

Ac

"HYPOTHETICAL" species needing more documentation

American Golden-plover

(Ac)

Bluethroat

(Ac)