Gatekeeper
- Group
- Butterflies and moths
- Peak month
- July
- Records since 2000
- 600,897
Described in 1771
46 species
Gray Wagtail
- Group
- Birds
- Peak month
- October
- Records since 2000
- 210,755
Peregrine Falcon
- Group
- Birds
- Peak month
- October
- Records since 2000
- 69,886
White-legged Damselfly, Blue featherleg
- Group
- Dragonflies and damselflies
- Peak month
- June
- Records since 2000
- 15,819
Green sea urchin
- Group
- Starfish and sea urchins
- Peak month
- August
- Records since 2000
- 7,919
Zebra Mussel
- Group
- Molluscs
- Peak month
- May
- Records since 2000
- 3,352
Nut Leaf Weevil
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 2,562
Hornhand Sedgesitter
- Group
- True flies
- Peak month
- August
- Records since 2000
- 2,435
Rosy Footman
- Group
- Butterflies and moths
- Peak month
- July
- Records since 2000
- 2,303
Gorse Weevil
- Group
- Beetles
- Peak month
- April
- Records since 2000
- 2,126
Chequered Skipper
- Group
- Butterflies and moths
- Peak month
- June
- Records since 2000
- 1,929
Harvest Mouse
- Group
- Mammals
- Peak month
- November
- Records since 2000
- 1,917
Marsh Frog
- Group
- Amphibians
- Peak month
- May
- Records since 2000
- 1,516
Ornate Tailed Digger Wasp
- Group
- Bees, wasps and ants
- Peak month
- July
- Records since 2000
- 1,429
Barred Yellow
- Group
- Butterflies and moths
- Peak month
- June
- Records since 2000
- 1,357
Helochares lividus
- Group
- Beetles
- Peak month
- September
- Records since 2000
- 1,157
Hawthorn Leaf Beetle
- Group
- Beetles
- Peak month
- April
- Records since 2000
- 1,135
Bramble Sawfly
- Group
- Bees, wasps and ants
- Peak month
- May
- Records since 2000
- 1,113
Common Mourning Bee
- Group
- Bees, wasps and ants
- Peak month
- April
- Records since 2000
- 1,080
Agabus nebulosus
- Group
- Beetles
- Peak month
- October
- Records since 2000
- 1,062
Parethelcus pollinarius
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 783
Purple Sun Star
- Group
- Starfish and sea urchins
- Peak month
- August
- Records since 2000
- 733
Anaspis fasciata
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 586
Toothed Tiger Ichneumon
- Group
- Bees, wasps and ants
- Peak month
- June
- Records since 2000
- 518
Eurasian water shrew
- Group
- Mammals
- Peak month
- August
- Records since 2000
- 478
Chrysolina hyperici
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 412
Tenthredo arcuata
- Group
- Bees, wasps and ants
- Peak month
- June
- Records since 2000
- 399
Rhantus exsoletus
- Group
- Beetles
- Peak month
- April
- Records since 2000
- 391
Aedes caspius
- Group
- True flies
- Peak month
- September
- Records since 2000
- 383
Buff-bellied Pipit
- Group
- Birds
- Peak month
- October
- Records since 2000
- 357
Cytilus sericeus
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 328
Gonioctena olivacea
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 270
Nysson spinosus
- Group
- Bees, wasps and ants
- Peak month
- June
- Records since 2000
- 198
Sociable Plover
- Group
- Birds
- Peak month
- December
- Records since 2000
- 184
Dolerus gonager
- Group
- Bees, wasps and ants
- Peak month
- May
- Records since 2000
- 167
Ichneumon xanthorius
- Group
- Bees, wasps and ants
- Peak month
- July
- Records since 2000
- 157
Pine bunting
- Group
- Birds
- Peak month
- January
- Records since 2000
- 151
Nyctobrya muralis
- Group
- Butterflies and moths
- Peak month
- July
- Records since 2000
- 148
Dendroxena quadrimaculata
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 137
Pseudamussium peslutrae
- Group
- Molluscs
- Peak month
- September
- Records since 2000
- 128
Dorytomus longimanus
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 114
Common Nighthawk
- Group
- Birds
- Peak month
- September
- Records since 2000
- 92
Trachyphloeus scabriculus
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 86
Sitaris muralis
- Group
- Beetles
- Peak month
- August
- Records since 2000
- 72
Cordylophora caspia
- Group
- Jellyfish, corals and anemones
- Peak month
- September
- Records since 2000
- 67
Banded Pill Beetle
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 63