712 species
Plants
712 species, from Susan Synnott's plant list.
Nine entries on the list have no common name at all, and most of the plants have a specimen in the Heritage Room herbarium.
See the full list
Sark Nature Records
The island's wildlife, counted by the people who live with it. Species records from La Société Sercquaise, visiting surveys and the naturalists who have documented Sark over generations.
- 967
- species across the six lists: plants, birds, butterflies, moths, bats and marine life
- 1885
- the year of the earliest survey still cited, the Gouliot Caves
- 2
- species recorded only on Sark in the Bailiwick bat survey
77 species
Birds
77 species recorded in 2024 and 2025.
Two pairs of barn owls bred successfully in 2024, with repeated sightings suggesting a possible third pair.
See the full list
29 species checklist
Butterflies
A 29 species checklist, 21 recorded in 2024.
The best single count of 2024 was 22 silver-studded blues in one survey on 19 July.
See the full list
68 species
Moths
68 species recorded in 2024.
The trap went out less often in a wet 2024, but October still brought a marked spike in moth activity.
See the full list
8 species
Bats
8 species from four years of night recording.
Leisler's Bat was recorded on Sark for the first time on 11 October 2023, near Derrible Head.
See the full list
These aren't records from somewhere inaccessible. Many of these habitats sit directly along the paths a visitor walks.
73 species
Marine life
73 species from the Gouliot Caves survey.
All five surveys since 1885 describe the same Jewel cave community, which suggests the cave a visitor sees today is recognisably the one Victorian naturalists recorded.
See the full list
17 counted in 2024
Crawfish
Three snapshot surveys across eight anonymised reef sites.
Sark is the only place in the British Isles where crawfish are fully protected, and 2024 brought the first juveniles of the whole series.
See the full list
2bn years of gneiss underfoot
Rocks
The island's rock types, from one geological survey.
The biotite gneiss under most of the island is about 2 billion years old, and the lamprophyre dykes, the youngest rocks in the Channel Islands, are about 280 million.
See the full list
Published from data obtained from La Société Sercquaise. Errors are ours, not the recorders'. Corrections to info@sarksoulretreats.com.
