Tiree and Coll

Country/territory: United Kingdom

IBA Criteria met: -
For more information about IBA criteria please click here

Area: 16,510 ha

Royal Society for the Protection of Birds

Site description
Two large Inner Hebridean islands and associated islets. Coll is a whale-backed island, with many lochs, while Tiree is a low, flat island overlooked by three hills. Unlike Coll, most of the peat deposits on Tiree have been cut away in the past. Extensive sand-dune, machair, moorland and grassland complexes are present.

First identified in 1989, and extended to include the whole of both islands in 2000. Descriptive text and bird data refer to the 2000 Inventory.

Key biodiversity
This IBA is of major international importance for a range of birds of wetland and low intensity agricultural land. It is also nationally important for breeding Gavia stellata (10 pairs, 1993-1996, 1%), Anas acuta (2 pairs, 1994, 5%), Charadrius hiaticula (100 pairs, 1994, 1%), Stercorarius parasiticus (49 pairs, 1987, 2%), Sterna hirundo (185 pairs, 1995, 1%) and Sterna paradisaea (465 pairs, 1995, 1%), as well as for wintering Calidris alba (380 birds, 1989, 2%). Anser albifrons are the flavirostris subspecies, A. anser are from the Hebridean population, and Branta leucopsis are from the Greenland breeding population.

Recommended citation
BirdLife International (2023) Important Bird Areas factsheet: Tiree and Coll. Downloaded from on 22/03/2023.