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Location United Kingdom, Scotland
Central coordinates 6o 37.33' West  56o 35.98' North
IBA criteria A1, B2, C1, C2, C6
Area 369 ha
Year of IBA assessment 2007

Royal Society for the Protection of Birds

Site description The island of Coll lies in the Inner Hebrides of western Scotland, west of Mull in Argyll and Bute. The IBA lies towards the south-west of the island. It includes areas of agricultural hay meadows, silage fields, pasture, arable fields, marsh, Iris beds and rock outcrops. It is important for breeding Crex crex.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Corncrake Crex crex breeding  2001  38 breeding pairs  good  A1, B2, C1, C2, C6  Least Concern 

IBA Monitoring

2007 medium favourable medium
Good - based on reliable and complete / representative data

Agriculture and aquaculture livestock farming and ranching (includes forest grazing) - small-holder grazing, ranching or farming happening now some of area/population (10-49%) slow but significant deterioration medium

Crex crex Corncrake 24 38 breeding pairs 100 favourable

Whole area of site (>90%) covered by appropriate conservation designation  A management plan exists but it is out of date or not comprehensive  Substantive conservation measures are being implemented but these are not comprehensive and are limited by resources and capacity  medium 

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Coll RSPB Reserve 1,636 protected area overlaps with site 245  


IUCN habitat Habitat detail Extent (% of site)
Wetlands (inland) Fens, transition mires and springs  minor
Artificial - terrestrial Arable land  major

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Coll (Corncrake). Downloaded from on 27/10/2016

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