Isle of Anglesey — county
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 8,098
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 8,081
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 8,058
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 7,999
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 7,833
- Group
- Seaweeds and algae
- Peak month
- May
- Records since 2000
- 7,820
- Group
- Flowering plants
- Peak month
- May
- Records since 2000
- 7,792
- Group
- Molluscs
- Peak month
- August
- Records since 2000
- 7,788
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 7,753
- Group
- Beetles
- Peak month
- April
- Records since 2000
- 7,662
- Group
- Crustaceans
- Peak month
- June
- Records since 2000
- 7,641
- Group
- Bees, wasps and ants
- Peak month
- May
- Records since 2000
- 7,566
- Group
- Liverworts
- Peak month
- April
- Records since 2000
- 7,505
- Group
- Jellyfish, corals and anemones
- Peak month
- August
- Records since 2000
- 7,465
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 7,405
- Group
- Butterflies and moths
- Peak month
- June
- Records since 2000
- 7,356
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 7,315
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 7,311
- Group
- Crustaceans
- Peak month
- August
- Records since 2000
- 7,241
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 7,207
- Group
- Mosses
- Peak month
- October
- Records since 2000
- 7,130
- Group
- True flies
- Peak month
- June
- Records since 2000
- 7,101
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 7,052
- Group
- Molluscs
- Peak month
- September
- Records since 2000
- 7,038
- Group
- True flies
- Peak month
- July
- Records since 2000
- 6,849
- Group
- True flies
- Peak month
- October
- Records since 2000
- 6,837
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 6,743
- Group
- True bugs
- Peak month
- April
- Records since 2000
- 6,724
- Group
- Fungi
- Peak month
- October
- Records since 2000
- 6,720
- Group
- True flies
- Peak month
- July
- Records since 2000
- 6,599
- Group
- Sponges
- Peak month
- September
- Records since 2000
- 6,532
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 6,503
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 6,500
- Group
- Mosses
- Peak month
- August
- Records since 2000
- 6,465
- Group
- Sea squirts
- Peak month
- August
- Records since 2000
- 6,456
- Group
- True bugs
- Peak month
- August
- Records since 2000
- 6,364
- Group
- Sponges
- Peak month
- July
- Records since 2000
- 6,282
- Group
- True flies
- Peak month
- June
- Records since 2000
- 6,241
- Group
- Amphibians
- Peak month
- May
- Records since 2000
- 6,154
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 6,145
- Group
- Butterflies and moths
- Peak month
- August
- Records since 2000
- 6,140
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 6,084
- Group
- Flowering plants
- Peak month
- May
- Records since 2000
- 5,970
- Group
- True flies
- Peak month
- July
- Records since 2000
- 5,929
- Group
- Butterflies and moths
- Peak month
- June
- Records since 2000
- 5,881
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 5,821
- Group
- True flies
- Peak month
- August
- Records since 2000
- 5,815
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 5,799