Ceredigion — county
- Group
- Mosses
- Peak month
- October
- Records since 2000
- 5,362
- Group
- Lichens
- Peak month
- March
- Records since 2000
- 5,354
- Group
- Caddisflies
- Peak month
- April
- Records since 2000
- 5,337
- Group
- Liverworts
- Peak month
- March
- Records since 2000
- 5,322
- Group
- Caddisflies
- Peak month
- May
- Records since 2000
- 5,313
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 5,286
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 5,279
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 5,214
- Group
- Lichens
- Peak month
- May
- Records since 2000
- 5,166
- Group
- Worms (annelids)
- Peak month
- July
- Records since 2000
- 5,154
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 5,135
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 5,044
- Group
- Liverworts
- Peak month
- July
- Records since 2000
- 5,006
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 5,005
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 4,974
- Group
- Liverworts
- Peak month
- July
- Records since 2000
- 4,917
- Group
- Mosses
- Peak month
- August
- Records since 2000
- 4,772
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 4,763
- Group
- Mosses
- Peak month
- April
- Records since 2000
- 4,753
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 4,733
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 4,722
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 4,704
- Group
- Flowering plants
- Peak month
- May
- Records since 2000
- 4,703
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 4,682
- Group
- Mosses
- Peak month
- April
- Records since 2000
- 4,652
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 4,644
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 4,629
- Group
- Molluscs
- Peak month
- September
- Records since 2000
- 4,616
- Group
- Mammals
- Peak month
- September
- Records since 2000
- 4,610
- Group
- Molluscs
- Peak month
- August
- Records since 2000
- 4,578
- Group
- Mosses
- Peak month
- November
- Records since 2000
- 4,567
- Group
- Molluscs
- Peak month
- September
- Records since 2000
- 4,533
- Group
- Seaweeds and algae
- Peak month
- September
- Records since 2000
- 4,527
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 4,520
- Group
- Liverworts
- Peak month
- July
- Records since 2000
- 4,463
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 4,452
- Group
- Mayflies
- Peak month
- April
- Records since 2000
- 4,445
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 4,434
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 4,380
- Group
- Fish
- Peak month
- September
- Records since 2000
- 4,325
- Group
- Beetles
- Peak month
- September
- Records since 2000
- 4,245
- Group
- Caddisflies
- Peak month
- April
- Records since 2000
- 4,225
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 4,224
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 4,222
- Group
- Lichens
- Peak month
- August
- Records since 2000
- 4,213
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 4,163
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 4,162
- Group
- True flies
- Peak month
- July
- Records since 2000
- 4,139