Na h-Eileanan Siar — county
- Group
- Butterflies and moths
- Peak month
- May
- Records since 2000
- 350
- Group
- Butterflies and moths
- Peak month
- June
- Records since 2000
- 344
- Group
- Butterflies and moths
- Peak month
- October
- Records since 2000
- 340
- Group
- Butterflies and moths
- Peak month
- July
- Records since 2000
- 336
- Group
- Crustaceans
- Peak month
- September
- Records since 2000
- 333
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 331
- Group
- Butterflies and moths
- Peak month
- May
- Records since 2000
- 326
- Group
- Butterflies and moths
- Peak month
- June
- Records since 2000
- 315
- Group
- Butterflies and moths
- Peak month
- July
- Records since 2000
- 306
- Group
- Beetles
- Peak month
- July
- Records since 2000
- 297
- Group
- Fungi
- Peak month
- August
- Records since 2000
- 295
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 293
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 292
- Group
- Butterflies and moths
- Peak month
- August
- Records since 2000
- 288
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 286
- Group
- Butterflies and moths
- Peak month
- July
- Records since 2000
- 277
- Group
- Butterflies and moths
- Peak month
- August
- Records since 2000
- 270
- Group
- Beetles
- Peak month
- July
- Records since 2000
- 270
- Group
- Beetles
- Peak month
- October
- Records since 2000
- 250
- Group
- Butterflies and moths
- Peak month
- August
- Records since 2000
- 249
- Group
- Molluscs
- Peak month
- August
- Records since 2000
- 242
- Group
- Butterflies and moths
- Peak month
- October
- Records since 2000
- 238
- Group
- Butterflies and moths
- Peak month
- July
- Records since 2000
- 236
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 236
- Group
- Butterflies and moths
- Peak month
- August
- Records since 2000
- 231
- Group
- Beetles
- Peak month
- August
- Records since 2000
- 230
- Group
- Fungi
- Peak month
- August
- Records since 2000
- 224
- Group
- Beetles
- Peak month
- August
- Records since 2000
- 223
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 215
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 213
- Group
- Beetles
- Records since 2000
- 212
- NBN Atlas records since 2000
- 214
- Group
- Fungi
- Peak month
- July
- Records since 2000
- 212
- Group
- Butterflies and moths
- Peak month
- June
- Records since 2000
- 208
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 208
- Group
- Caddisflies
- Peak month
- May
- Records since 2000
- 207
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 199
- Group
- Butterflies and moths
- Peak month
- July
- Records since 2000
- 199
- Group
- Mosses
- Peak month
- June
- Records since 2000
- 197
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 197
- Group
- Butterflies and moths
- Peak month
- May
- Records since 2000
- 191
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 187
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 187
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 186
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 186
- Group
- Fungi
- Peak month
- August
- Records since 2000
- 185
- Group
- Butterflies and moths
- Peak month
- June
- Records since 2000
- 176
- Group
- Butterflies and moths
- Peak month
- May
- Records since 2000
- 174
- Group
- Seaweeds and algae
- Peak month
- July
- Records since 2000
- 174