Northamptonshire — county
- Group
- Flowering plants
- Peak month
- August
- Records since 2000
- 6,360
- Group
- True flies
- Peak month
- June
- Records since 2000
- 6,241
- Group
- True bugs
- Peak month
- May
- Records since 2000
- 6,233
- Group
- Mosses
- Peak month
- November
- Records since 2000
- 6,232
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 6,160
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 6,138
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 6,047
- Group
- Flowering plants
- Peak month
- May
- Records since 2000
- 6,008
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 5,981
- Group
- True flies
- Peak month
- July
- Records since 2000
- 5,929
- Group
- True bugs
- Peak month
- July
- Records since 2000
- 5,901
- Group
- Flowering plants
- Peak month
- May
- Records since 2000
- 5,848
- Group
- True flies
- Peak month
- June
- Records since 2000
- 5,839
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 5,832
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 5,821
- Group
- True flies
- Peak month
- August
- Records since 2000
- 5,815
- Group
- Caddisflies
- Peak month
- May
- Records since 2000
- 5,775
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 5,723
- Group
- Liverworts
- Peak month
- March
- Records since 2000
- 5,722
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 5,714
- Group
- True flies
- Peak month
- September
- Records since 2000
- 5,709
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 5,702
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 5,694
- Group
- True flies
- Peak month
- August
- Records since 2000
- 5,653
- Group
- Grasshoppers and crickets
- Peak month
- August
- Records since 2000
- 5,628
- Group
- True bugs
- Peak month
- September
- Records since 2000
- 5,622
- Group
- Caddisflies
- Peak month
- August
- Records since 2000
- 5,591
- Group
- Caddisflies
- Peak month
- October
- Records since 2000
- 5,560
- Group
- Birds
- Peak month
- January
- Records since 2000
- 5,556
- Group
- Caddisflies
- Peak month
- May
- Records since 2000
- 5,472
- Group
- Mosses
- Peak month
- October
- Records since 2000
- 5,362
- Group
- Caddisflies
- Peak month
- May
- Records since 2000
- 5,313
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 5,290
- Group
- Grasshoppers and crickets
- Peak month
- August
- Records since 2000
- 5,193
- Group
- Flowering plants
- Peak month
- May
- Records since 2000
- 5,181
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 5,096
- Group
- True flies
- Peak month
- August
- Records since 2000
- 5,083
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 4,967
- Group
- Worms (annelids)
- Peak month
- April
- Records since 2000
- 4,751
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 4,738
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 4,722
- Group
- True bugs
- Peak month
- May
- Records since 2000
- 4,664
- Group
- True bugs
- Peak month
- August
- Records since 2000
- 4,626
- Group
- Mosses
- Peak month
- November
- Records since 2000
- 4,567
- Group
- True flies
- Peak month
- July
- Records since 2000
- 4,512
- Group
- Mosses
- Peak month
- October
- Records since 2000
- 4,450
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 4,369
- Group
- True flies
- Peak month
- May
- Records since 2000
- 4,355