Sea Lettuce
- Group
- Seaweeds and algae
- Records since 2000
- 5,372
- Scientific name
- Ulva lactuca
Glaucous Gull
- Group
- Birds
- Records since 2000
- 5,212
- Scientific name
- Larus hyperboreus
Sea Lace
- Group
- Seaweeds and algae
- Records since 2000
- 4,500
- Scientific name
- Chorda filum
Horned Lark
- Group
- Birds
- Records since 2000
- 3,926
- Scientific name
- Eremophila alpestris
Water Screw-moss
- Group
- Mosses
- Records since 2000
- 3,728
- Scientific name
- Syntrichia latifolia
Tundra Bean-Goose
- Group
- Birds
- Records since 2000
- 3,430
- Scientific name
- Anser serrirostris
Muscovy Duck
- Group
- Birds
- Records since 2000
- 3,149
- Scientific name
- Cairina moschata
Snow/Ross's Goose
- Group
- Birds
- Records since 2000
- 2,808
- Scientific name
- Anser caerulescens
Polyides rotunda
- Group
- Seaweeds and algae
- Records since 2000
- 2,740
- Peak month
- January
Marble Screw-moss
- Group
- Mosses
- Records since 2000
- 2,509
- Scientific name
- Syntrichia papillosa
American Wigeon
- Group
- Birds
- Records since 2000
- 2,340
- Scientific name
- Mareca americana
Yellow Brain
- Group
- Fungi
- Records since 2000
- 2,322
- Scientific name
- Tremella mesenterica
Cat
- Group
- Mammals
- Records since 2000
- 2,121
- Scientific name
- Felis catus
Netted Crust
- Group
- Fungi
- Records since 2000
- 2,044
- Scientific name
- Byssomerulius corium
Ferruginous Duck
- Group
- Birds
- Records since 2000
- 2,039
- Scientific name
- Aythya nyroca
Surf Scoter
- Group
- Birds
- Records since 2000
- 2,003
- Scientific name
- Melanitta perspicillata
Clostridioides spec.
- Group
- Microorganisms and protists
- Records since 2000
- 1,839
- Peak month
- January
Witches' Butter
- Group
- Fungi
- Records since 2000
- 1,788
- Scientific name
- Exidia glandulosa
Velvet Shank
- Group
- Fungi
- Records since 2000
- 1,739
- Scientific name
- Flammulina velutipes
Rough-legged Hawk
- Group
- Birds
- Records since 2000
- 1,621
- Scientific name
- Buteo lagopus
Limnophyes habilis
- Group
- True flies
- Records since 2000
- 1,552
- Peak month
- January
Elder Whitewash
- Group
- Fungi
- Records since 2000
- 1,535
- Scientific name
- Lyomyces sambuci
Ross's Goose
- Group
- Birds
- Records since 2000
- 1,467
- Scientific name
- Anser rossii
Common Crane
- Group
- Birds
- Records since 2000
- 1,346
- Scientific name
- Grus grus
Ring-billed Gull
- Group
- Birds
- Records since 2000
- 1,313
- Scientific name
- Larus delawarensis
Oak Crust
- Group
- Fungi
- Records since 2000
- 1,269
- Scientific name
- Peniophora quercina
Lesser Screw-moss
- Group
- Mosses
- Records since 2000
- 1,219
- Scientific name
- Syntrichia virescens
Culicoides scoticus
- Group
- True flies
- Records since 2000
- 1,191
- Peak month
- January
Emericella versicolor
- Group
- Fungi
- Records since 2000
- 1,175
- Peak month
- January
Smallest Pottia
- Group
- Mosses
- Records since 2000
- 1,174
- Scientific name
- Microbryum davallianum
Hume's Warbler
- Group
- Birds
- Records since 2000
- 1,164
- Scientific name
- Phylloscopus humei
Oak Blackhead
- Group
- Fungi
- Records since 2000
- 1,074
- Scientific name
- Diatrypella quercina
Common Frillwort
- Group
- Liverworts
- Records since 2000
- 1,052
- Scientific name
- Fossombronia pusilla
Limnophyes prolongatus
- Group
- True flies
- Records since 2000
- 1,028
- Peak month
- January
Taiga/Tundra Bean-Goose
- Group
- Birds
- Records since 2000
- 949
- Scientific name
- Anser fabalis
Rock Fingerwort
- Group
- Liverworts
- Records since 2000
- 917
- Scientific name
- Lepidozia cupressina
Streptococcus spec.
- Group
- Microorganisms and protists
- Records since 2000
- 895
- Peak month
- January
Cladosporium herbarum
- Group
- Fungi
- Records since 2000
- 882
- Peak month
- January
Aspergillus fumigatus
- Group
- Fungi
- Records since 2000
- 837
- Peak month
- January
Ross Coral
- Group
- Bryozoans
- Records since 2000
- 823
- Scientific name
- Pentapora fascialis
Western Red-cedar
- Group
- Conifers
- Records since 2000
- 819
- Scientific name
- Thuja plicata
Waxy Crust
- Group
- Fungi
- Records since 2000
- 756
- Scientific name
- Vuilleminia comedens
Birch Besom
- Group
- Fungi
- Records since 2000
- 745
- Scientific name
- Taphrina betulina
Eurasian Penduline-Tit
- Group
- Birds
- Records since 2000
- 740
- Scientific name
- Remiz pendulinus
Penicillium chrysogenum
- Group
- Fungi
- Records since 2000
- 728
- Peak month
- January
Cladosporium cladosporioides
- Group
- Fungi
- Records since 2000
- 718
- Peak month
- January
Rollrim Mould
- Group
- Fungi
- Records since 2000
- 710
- Scientific name
- Penicillium brevicompactum
Golden Pheasant
- Group
- Birds
- Records since 2000
- 706
- Scientific name
- Chrysolophus pictus