Muscovy Duck
- Peak month
- January
- Records since 2000
- 3,149
- Scientific name
- Cairina moschata
Dartford Warbler
- Peak month
- May
- Records since 2000
- 3,048
- Scientific name
- Sylvia undata
Temminck's Stint
- Peak month
- May
- Records since 2000
- 3,040
- Scientific name
- Calidris temminckii
Lesser Yellowlegs
- Peak month
- October
- Records since 2000
- 2,959
- Scientific name
- Tringa flavipes
Snow/Ross's Goose
- Peak month
- January
- Records since 2000
- 2,808
- Scientific name
- Anser caerulescens
Long-billed Dowitcher
- Peak month
- October
- Records since 2000
- 2,603
- Scientific name
- Limnodromus scolopaceus
Barred Warbler
- Peak month
- September
- Records since 2000
- 2,598
- Scientific name
- Sylvia nisoria
Dovekie
- Peak month
- November
- Records since 2000
- 2,594
- Scientific name
- Alle alle
Great shearwater
- Peak month
- August
- Records since 2000
- 2,584
- Scientific name
- Puffinus gravis
Lesser Scaup
- Peak month
- March
- Records since 2000
- 2,556
- Scientific name
- Aythya affinis
Red-breasted Flycatcher
- Peak month
- October
- Records since 2000
- 2,375
- Scientific name
- Ficedula parva
American Wigeon
- Peak month
- January
- Records since 2000
- 2,340
- Scientific name
- Mareca americana
Sabine's Gull
- Peak month
- September
- Records since 2000
- 2,159
- Scientific name
- Xema sabini
Bar-headed Goose
- Peak month
- August
- Records since 2000
- 2,106
- Scientific name
- Anser indicus
Eurasian Dotterel
- Peak month
- May
- Records since 2000
- 2,076
- Scientific name
- Charadrius morinellus
Ferruginous Duck
- Peak month
- January
- Records since 2000
- 2,039
- Scientific name
- Aythya nyroca
Eurasian Hoopoe
- Peak month
- October
- Records since 2000
- 2,017
- Scientific name
- Upupa epops
Surf Scoter
- Peak month
- January
- Records since 2000
- 2,003
- Scientific name
- Melanitta perspicillata
Long-tailed Jaeger
- Peak month
- September
- Records since 2000
- 2,000
- Scientific name
- Stercorarius longicaudus
Pallas's Leaf Warbler
- Peak month
- October
- Records since 2000
- 1,977
- Scientific name
- Phylloscopus proregulus
Red-necked Phalarope
- Peak month
- September
- Records since 2000
- 1,950
- Scientific name
- Phalaropus lobatus
Red-breasted Goose
- Peak month
- February
- Records since 2000
- 1,944
- Scientific name
- Branta ruficollis
Rosy Starling
- Peak month
- June
- Records since 2000
- 1,860
- Scientific name
- Pastor roseus
Cory's Shearwater
- Peak month
- August
- Records since 2000
- 1,854
- Scientific name
- Calonectris diomedea
Little Bunting
- Peak month
- October
- Records since 2000
- 1,835
- Scientific name
- Emberiza pusilla
Rock Ptarmigan
- Peak month
- May
- Records since 2000
- 1,814
- Scientific name
- Lagopus muta
Bluethroat
- Peak month
- May
- Records since 2000
- 1,806
- Scientific name
- Luscinia svecica
Leach's/Townsend's/Ainley's Storm-Petrel
- Peak month
- September
- Records since 2000
- 1,800
- Scientific name
- Oceanodroma leucorhoa
Bonaparte's Gull
- Peak month
- July
- Records since 2000
- 1,770
- Scientific name
- Chroicocephalus philadelphia
Common Rosefinch
- Peak month
- September
- Records since 2000
- 1,758
- Scientific name
- Carpodacus erythrinus
Red-footed Falcon
- Peak month
- May
- Records since 2000
- 1,755
- Scientific name
- Falco vespertinus
White-rumped Sandpiper
- Peak month
- August
- Records since 2000
- 1,643
- Scientific name
- Calidris fuscicollis
Rough-legged Hawk
- Peak month
- January
- Records since 2000
- 1,621
- Scientific name
- Buteo lagopus
American Golden-Plover
- Peak month
- October
- Records since 2000
- 1,494
- Scientific name
- Pluvialis dominica
Ross's Goose
- Peak month
- January
- Records since 2000
- 1,467
- Scientific name
- Anser rossii
Dusky Warbler
- Peak month
- October
- Records since 2000
- 1,431
- Scientific name
- Phylloscopus fuscatus
Pallid Harrier
- Peak month
- September
- Records since 2000
- 1,426
- Scientific name
- Circus macrourus
Purple Heron
- Peak month
- May
- Records since 2000
- 1,397
- Scientific name
- Ardea purpurea
Spotted Crake
- Peak month
- August
- Records since 2000
- 1,397
- Scientific name
- Porzana porzana
Common Crane
- Peak month
- January
- Records since 2000
- 1,346
- Scientific name
- Grus grus
Ring-billed Gull
- Peak month
- January
- Records since 2000
- 1,313
- Scientific name
- Larus delawarensis
Woodchat Shrike
- Peak month
- May
- Records since 2000
- 1,274
- Scientific name
- Lanius senator
Buff-breasted Sandpiper
- Peak month
- September
- Records since 2000
- 1,257
- Scientific name
- Calidris subruficollis
Great Reed Warbler
- Peak month
- May
- Records since 2000
- 1,244
- Scientific name
- Acrocephalus arundinaceus
Richard's/Blyth's Pipit
- Peak month
- October
- Records since 2000
- 1,208
- Scientific name
- Anthus richardi
Black-crowned Night-Heron
- Peak month
- April
- Records since 2000
- 1,194
- Scientific name
- Nycticorax nycticorax
White-winged Tern
- Peak month
- August
- Records since 2000
- 1,194
- Scientific name
- Chlidonias leucopterus
Hume's Warbler
- Peak month
- January
- Records since 2000
- 1,164
- Scientific name
- Phylloscopus humei