Common Darter
- Group
- Dragonflies and damselflies
- Peak month
- August
- Records since 2000
- 200,125
Described in 1840
79 species
Common Blue Damselfly
- Group
- Dragonflies and damselflies
- Peak month
- June
- Records since 2000
- 163,490
Yellow-legged Gull
- Group
- Birds
- Peak month
- August
- Records since 2000
- 31,327
Small Red-eyed Damselfly
- Group
- Dragonflies and damselflies
- Peak month
- August
- Records since 2000
- 15,356
Southern Damselfly
- Group
- Dragonflies and damselflies
- Peak month
- June
- Records since 2000
- 9,257
Eunereis longissima
- Group
- Worms (annelids)
- Peak month
- August
- Records since 2000
- 5,053
Red-veined Darter
- Group
- Dragonflies and damselflies
- Peak month
- June
- Records since 2000
- 4,963
Lysidice unicornis
- Group
- Worms (annelids)
- Peak month
- August
- Records since 2000
- 3,415
Arctic cancellate chiton
- Group
- Molluscs
- Peak month
- August
- Records since 2000
- 2,332
Sea Lettuce
- Group
- Seaweeds and algae
- Peak month
- August
- Records since 2000
- 1,776
Harmothoe extenuata
- Group
- Worms (annelids)
- Peak month
- August
- Records since 2000
- 1,568
Artichoke Gall
- Group
- Bees, wasps and ants
- Peak month
- August
- Records since 2000
- 1,556
Eulalia bilineata
- Group
- Worms (annelids)
- Peak month
- August
- Records since 2000
- 1,507
Northern Emerald
- Group
- Dragonflies and damselflies
- Peak month
- June
- Records since 2000
- 1,291
Nettle Pouch Gall Midge
- Group
- True flies
- Peak month
- September
- Records since 2000
- 1,247
Travisia forbesii
- Group
- Worms (annelids)
- Peak month
- June
- Records since 2000
- 1,118
Bradysia trivittata
- Group
- True flies
- Peak month
- August
- Records since 2000
- 1,108
Cola Nut Gall Wasp
- Group
- Bees, wasps and ants
- Peak month
- September
- Records since 2000
- 960
Cheilosia impressa
- Group
- True flies
- Peak month
- August
- Records since 2000
- 938
Molophilus appendiculatus
- Group
- True flies
- Peak month
- June
- Records since 2000
- 924
Ophiactis balli
- Group
- Starfish and sea urchins
- Peak month
- May
- Records since 2000
- 730
Lesteva sicula
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 716
Oak Curved-leaf Gall Wasp
- Group
- Bees, wasps and ants
- Peak month
- September
- Records since 2000
- 672
Dicranomyia autumnalis
- Group
- True flies
- Peak month
- July
- Records since 2000
- 585
Syllis gracilis
- Group
- Worms (annelids)
- Peak month
- August
- Records since 2000
- 542
Spanochaeta dorsalis
- Group
- True flies
- Peak month
- June
- Records since 2000
- 466
Euconulus alderi
- Group
- Molluscs
- Peak month
- September
- Records since 2000
- 442
Polydrusus pterygomalis
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 429
Beania mirabilis
- Group
- Bryozoans
- Peak month
- September
- Records since 2000
- 360
Cynips divisa
- Group
- Bees, wasps and ants
- Peak month
- September
- Records since 2000
- 358
Bradysia pectoralis
- Group
- True flies
- Peak month
- September
- Records since 2000
- 296
Perinereis cultrifera
- Group
- Worms (annelids)
- Peak month
- April
- Records since 2000
- 281
Dwarf pug
- Group
- Butterflies and moths
- Peak month
- May
- Records since 2000
- 274
Trachysiphonella scutellata
- Group
- True flies
- Peak month
- June
- Records since 2000
- 272
Fannia mollissima
- Group
- True flies
- Peak month
- April
- Records since 2000
- 253
Tetanocera hyalipennis
- Group
- True flies
- Peak month
- July
- Records since 2000
- 252
Cellaria sinuosa
- Group
- Bryozoans
- Peak month
- July
- Records since 2000
- 240
Stenus solutus
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 236
Axinotarsus marginalis
- Group
- Beetles
- Peak month
- July
- Records since 2000
- 225
Oncopsis tristis
- Group
- True bugs
- Peak month
- June
- Records since 2000
- 203
Lycia lapponaria
- Group
- Butterflies and moths
- Peak month
- April
- Records since 2000
- 192
Ochthephilus omalinus
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 188
Cynips longiventris
- Group
- Bees, wasps and ants
- Peak month
- September
- Records since 2000
- 180
Notacanthus bonaparte
- Group
- Fish
- Peak month
- September
- Records since 2000
- 165
Lanceolated Warbler
- Group
- Birds
- Peak month
- October
- Records since 2000
- 160
Chrysotimus flaviventris
- Group
- True flies
- Peak month
- July
- Records since 2000
- 151
Stenus picipennis
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 145
Swainson's Thrush
- Group
- Birds
- Peak month
- October
- Records since 2000
- 140
Amphora libyca
- Group
- Seaweeds and algae
- Peak month
- September
- Records since 2000
- 127
Mangelia coarctata
- Group
- Molluscs
- Peak month
- March
- Records since 2000
- 127
Neobisnius prolixus
- Group
- Beetles
- Peak month
- August
- Records since 2000
- 124
Sweetclover Weevil
- Group
- Beetles
- Peak month
- July
- Records since 2000
- 116
Irish damselfly
- Group
- Dragonflies and damselflies
- Peak month
- June
- Records since 2000
- 115
Andricus glandulae
- Group
- Bees, wasps and ants
- Peak month
- September
- Records since 2000
- 113
Fleutiauxellus maritimus
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 112
Pilaria scutellata
- Group
- True flies
- Peak month
- June
- Records since 2000
- 106
Barracudina
- Group
- Fish
- Peak month
- April
- Records since 2000
- 104
Phylidorea abdominalis
- Group
- True flies
- Peak month
- June
- Records since 2000
- 101
Limnephilus nigriceps
- Group
- Caddisflies
- Peak month
- September
- Records since 2000
- 91
Hyndman's sea cucumber
- Group
- Starfish and sea urchins
- Peak month
- July
- Records since 2000
- 88
A sea cucumber
- Group
- Starfish and sea urchins
- Peak month
- May
- Records since 2000
- 76
Molanna albicans
- Group
- Caddisflies
- Peak month
- July
- Records since 2000
- 75
Great-winged Petrel
- Group
- Birds
- Peak month
- October
- Records since 2000
- 74
Nansenia groenlandica
- Group
- Fish
- Peak month
- April
- Records since 2000
- 74
Pristiphora monogyniae
- Group
- Bees, wasps and ants
- Peak month
- April
- Records since 2000
- 73
Melanips opacus
- Group
- Bees, wasps and ants
- Peak month
- May
- Records since 2000
- 71
Orfelia pallida
- Group
- True flies
- Peak month
- June
- Records since 2000
- 71
Andricus fecundatrix
- Group
- Bees, wasps and ants
- Peak month
- October
- Records since 2000
- 70
Tipula signata
- Group
- True flies
- Peak month
- October
- Records since 2000
- 69
Coelosia flava
- Group
- True flies
- Peak month
- June
- Records since 2000
- 63
Cordyla brevicornis
- Group
- True flies
- Peak month
- October
- Records since 2000
- 63
Micromya lucorum
- Group
- True flies
- Peak month
- July
- Records since 2000
- 63
Zeiraphera ratzeburgiana
- Group
- Butterflies and moths
- Peak month
- July
- Records since 2000
- 63
Pherbellia scutellaris
- Group
- True flies
- Peak month
- September
- Records since 2000
- 59
Brevicornu griseicolle
- Group
- True flies
- Peak month
- October
- Records since 2000
- 57
Brevicornu fuscipenne
- Group
- True flies
- Peak month
- April
- Records since 2000
- 54
Andricus inflator
- Group
- Bees, wasps and ants
- Peak month
- September
- Records since 2000
- 52
Aguriahana germari
- Group
- True bugs
- Peak month
- July
- Records since 2000
- 50
Teuchophorus nigricosta
- Group
- True flies
- Peak month
- July
- Records since 2000
- 50