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The site was identified as internationally important for bird conservation in 2007 because it was regularly supporting significant populations of the species listed below, meeting IBA criteria.

Populations meeting IBA criteria ('key species') at the site:

Species	Red List	Season (year/s of estimate)	Size	IBA criteria
Corncrake Crex crex	LC	breeding (2001)	38 breeding pairs	A1, B2, C1, C2, C6

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2007. The most recent assessment (2007) is shown below.

State (condition of the key species' populations)
Species	Actual vs Reference (units)	% remaining	Result
Corncrake Crex crex	38 / 24 (breeding pairs)	100	favourable

Pressure (threats to the key species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Agricultural expansion and intensification	happen­ing now	some of popul­ation/area (10–49%)	slow deteri­oration (1–10% over 3 gener­ations)	medium

Response (conservation actions taken for the key species and/or their habitats)
Designation	Planning	Action	Result
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90%) covered by appropriate conservation designation	A manage­ment plan exists, but it is out of date or not compre­hensive	Substantive conservation measures are being implemented, but these are not comprehensive and are limited by resources and capacity	medium

Year	Protected Area	Designation (management category)	% coverage of IBA
-	Coll	RSPB Reserve (-)	66
1974	Totamore Dunes and Loch Ballyhaugh	Site of Special Scientific Interest (UK) (IV)	3
1991	Coll	Nature Reserve (IV)	63

Habitat	% of IBA	Habitat detail
Artificial/Terrestrial	major (>10)	Arable land
Wetlands (inland)	minor (<10)	Fens, transition mires and springs

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Recommended citation
BirdLife International (2025) Important Bird Area factsheet: Coll (Corncrake) (United Kingdom). Downloaded from https://datazone.birdlife.org/site/factsheet/coll-(corncrake)-iba-united-kingdom on 13/01/2025.