SPA description
(information as published 2001)

Treshnish Isles

image: SPA location map 


The Treshnish Isles are located in the Inner Hebrides of western Scotland. They are a series of small islands and skerries off the west coast of Mull in Argyll. They are rocky, with cliffs, screes and raised beaches, and support strongly maritime grassland and heath. The islands are important for their breeding seabird colonies, especially Storm Petrel Hydrobates pelagicus. The most important seabird colonies are on Lunga, which supports the majority of Storm Petrels. The Treshnish Isles are also of importance as a traditional wintering locality for Greenland Barnacle Goose Branta leucopsis


Qualifying species

For individual species accounts visit the Species Accounts section


This site qualifies under Article 4.1 of the Directive (79/409/EEC) by supporting populations of European importance of the following species listed on Annex I of the Directive:


During the breeding season;
Storm Petrel Hydrobates pelagicus, 5,040 pairs representing at least 5.9% of the breeding population in Great Britain (Count, as at 1996)
Over winter;
Barnacle Goose Branta leucopsis, 82 individuals representing at least 0.3% of the wintering population in Great Britain (Three count mean, 1994, 1955 & 1997)


Many designated sites are on private land: the listing of a site in these pages does not imply any right of public access.
Note that sites selected for waterbird species on the basis of their occurrence in the breeding, passage or winter periods also provide legal protection for these species when they occur at other times of the year.