Calderdale — county
- Group
- Liverworts
- Peak month
- March
- Records since 2000
- 23,907
- Group
- Flowering plants
- Peak month
- August
- Records since 2000
- 23,828
- Group
- Birds
- Peak month
- January
- Records since 2000
- 23,364
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 23,139
- Group
- Birds
- Peak month
- April
- Records since 2000
- 23,015
- Group
- Caddisflies
- Peak month
- April
- Records since 2000
- 22,673
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 21,994
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 21,756
- Group
- Birds
- Peak month
- April
- Records since 2000
- 21,736
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 21,593
- Group
- Caddisflies
- Peak month
- April
- Records since 2000
- 21,424
- Group
- Flowering plants
- Peak month
- August
- Records since 2000
- 21,307
- Group
- Caddisflies
- Peak month
- April
- Records since 2000
- 20,749
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 18,150
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 18,136
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 17,406
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 16,885
- Group
- Flowering plants
- Peak month
- May
- Records since 2000
- 16,569
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 14,629
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 14,496
- Group
- Caddisflies
- Peak month
- May
- Records since 2000
- 13,349
- Group
- Caddisflies
- Peak month
- September
- Records since 2000
- 13,302
- Group
- Liverworts
- Peak month
- July
- Records since 2000
- 13,066
- Group
- Liverworts
- Peak month
- July
- Records since 2000
- 12,767
- Group
- Birds
- Peak month
- October
- Records since 2000
- 12,579
- Group
- Mosses
- Peak month
- April
- Records since 2000
- 11,892
- Group
- Mosses
- Peak month
- April
- Records since 2000
- 11,029
- Group
- Mosses
- Peak month
- April
- Records since 2000
- 10,043
- Group
- Liverworts
- Peak month
- July
- Records since 2000
- 8,368
- Group
- Caddisflies
- Peak month
- April
- Records since 2000
- 8,270
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 8,188
- Group
- Fungi
- Peak month
- October
- Records since 2000
- 6,720
- Group
- Caddisflies
- Peak month
- May
- Records since 2000
- 5,775
- Group
- Fungi
- Peak month
- October
- Records since 2000
- 5,759
- Group
- Fungi
- Peak month
- October
- Records since 2000
- 5,675
- Group
- Beetles
- Peak month
- July
- Records since 2000
- 5,478
- Group
- Caddisflies
- Peak month
- April
- Records since 2000
- 5,444
- Group
- Caddisflies
- Peak month
- April
- Records since 2000
- 5,337
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 4,520
- Group
- Caddisflies
- Peak month
- April
- Records since 2000
- 4,225
- Group
- Flowering plants
- Peak month
- May
- Records since 2000
- 3,424
- Group
- Birds
- Peak month
- January
- Records since 2000
- 3,149
- Group
- Caddisflies
- Peak month
- April
- Records since 2000
- 2,887
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 2,670
- Group
- Fungi
- Peak month
- October
- Records since 2000
- 1,813
- Group
- Caddisflies
- Peak month
- July
- Records since 2000
- 1,639
- Group
- Fungi
- Peak month
- November
- Records since 2000
- 176