Eurasian Skylark
- Group
- Birds
- Peak month
- May
- Records since 2000
- 396,393
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- Species by county
- Na h-Eileanan Siar
Species recorded in Na h-Eileanan Siar
773 species
Na h-Eileanan Siar — county
Eurasian Linnet
- Group
- Birds
- Peak month
- April
- Records since 2000
- 394,460
Gadwall
- Group
- Birds
- Peak month
- April
- Records since 2000
- 371,348
Goldcrest
- Group
- Birds
- Peak month
- October
- Records since 2000
- 368,590
Coal Tit
- Group
- Birds
- Peak month
- January
- Records since 2000
- 365,786
Mew Gull
- Group
- Birds
- Peak month
- January
- Records since 2000
- 355,098
Reed Bunting
- Group
- Birds
- Peak month
- May
- Records since 2000
- 350,041
Small Heath
- Group
- Butterflies and moths
- Peak month
- June
- Records since 2000
- 347,993
Eurasian Curlew
- Group
- Birds
- Peak month
- October
- Records since 2000
- 344,007
Great Black-backed Gull
- Group
- Birds
- Peak month
- October
- Records since 2000
- 343,232
Common Redshank
- Group
- Birds
- Peak month
- April
- Records since 2000
- 330,955
Northern Shoveler
- Group
- Birds
- Peak month
- January
- Records since 2000
- 319,367
Common Shelduck
- Group
- Birds
- Peak month
- April
- Records since 2000
- 317,854
Eurasian Wigeon
- Group
- Birds
- Peak month
- January
- Records since 2000
- 306,853
Little Grebe
- Group
- Birds
- Peak month
- January
- Records since 2000
- 299,502
Red Admiral
- Group
- Butterflies and moths
- Peak month
- July
- Records since 2000
- 292,792
Common House-Martin
- Group
- Birds
- Peak month
- May
- Records since 2000
- 265,447
Redwing
- Group
- Birds
- Peak month
- January
- Records since 2000
- 261,212
Small Tortoiseshell
- Group
- Butterflies and moths
- Peak month
- July
- Records since 2000
- 256,492
Greater Whitethroat
- Group
- Birds
- Peak month
- May
- Records since 2000
- 231,628
Eurasian Sparrowhawk
- Group
- Birds
- Peak month
- April
- Records since 2000
- 231,351
European Stonechat
- Group
- Birds
- Peak month
- October
- Records since 2000
- 226,385
Willow Warbler
- Group
- Birds
- Peak month
- April
- Records since 2000
- 223,873
Gray Wagtail
- Group
- Birds
- Peak month
- October
- Records since 2000
- 210,755
Smallspotted catshark, Small-spotted catshark, Lesser Spotted Dogfish
- Group
- Fish
- Peak month
- November
- Records since 2000
- 201,598
Common Darter
- Group
- Dragonflies and damselflies
- Peak month
- August
- Records since 2000
- 200,125
Dunlin
- Group
- Birds
- Peak month
- September
- Records since 2000
- 190,336
Common Snipe
- Group
- Birds
- Peak month
- October
- Records since 2000
- 188,381
Common Raven
- Group
- Birds
- Peak month
- April
- Records since 2000
- 180,453
Eurasian Siskin
- Group
- Birds
- Peak month
- October
- Records since 2000
- 179,309
Bank Swallow
- Group
- Birds
- Peak month
- April
- Records since 2000
- 173,157
Black-tailed Godwit
- Group
- Birds
- Peak month
- August
- Records since 2000
- 167,241
Northern Gannet
- Group
- Birds
- Peak month
- July
- Records since 2000
- 163,725
Common Blue Damselfly
- Group
- Dragonflies and damselflies
- Peak month
- June
- Records since 2000
- 163,490
Common Tern
- Group
- Birds
- Peak month
- May
- Records since 2000
- 154,963
Eurasian Treecreeper
- Group
- Birds
- Peak month
- April
- Records since 2000
- 149,352
Common Ringed Plover
- Group
- Birds
- Peak month
- May
- Records since 2000
- 147,985
Blue-tailed Damselfly
- Group
- Dragonflies and damselflies
- Peak month
- June
- Records since 2000
- 144,041
Large Red Damselfly
- Group
- Dragonflies and damselflies
- Peak month
- May
- Records since 2000
- 143,697
Sedge Warbler
- Group
- Birds
- Peak month
- May
- Records since 2000
- 139,834
Fieldfare
- Group
- Birds
- Peak month
- January
- Records since 2000
- 138,324
Ruddy Turnstone
- Group
- Birds
- Peak month
- October
- Records since 2000
- 130,101
Common Carder Bee
- Group
- Bees, wasps and ants
- Peak month
- August
- Records since 2000
- 124,859
Northern Fulmar
- Group
- Birds
- Peak month
- July
- Records since 2000
- 116,637
Common Murre
- Group
- Birds
- Peak month
- July
- Records since 2000
- 112,186
Common Sandpiper
- Group
- Birds
- Peak month
- August
- Records since 2000
- 107,459
Northern Wheatear
- Group
- Birds
- Peak month
- April
- Records since 2000
- 107,268
Painted Lady
- Group
- Butterflies and moths
- Peak month
- August
- Records since 2000
- 105,523