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The site was identified as internationally important for bird conservation in 2009 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.

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

Species	Red List	Season (year/s of estimate)	Size	IBA criteria
European Shag Gulosus aristotelis	LC	breeding (2004–2009)	1,081–1,734 pairs	B1i, B3
Great Cormorant Phalacrocorax carbo	LC	breeding (2004–2009)	346–501 pairs	B1i, C3
Great Black-backed Gull Larus marinus	LC	breeding (2004–2007)	145–169 pairs	B3
Razorbill Alca torda	LC	breeding (2004–2009)	5,685–6,399 birds	B1ii, B3, C3
Common Murre Uria aalge	LC	breeding (2004–2009)	58,207–67,314 birds	B1ii, C3
A4iii Species group - seabirds	n/a	breeding (2004–2007)	50,000-99,999	A4iii, C4

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2009. The most recent assessment (2013) is shown below.

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Invasive and other problematic species and genes	happe­ning now	whole of popul­ation/area (>90%)	rapid decline (>30% over 3 gener­ations)	very high
Biological resource use	likely in short term (<4 years)	some of popul­ation/area (10–49%)	moderate decline (10–30% over 3 gener­ations)	medium
Human intrusions and disturbance	likely in short term (<4 years)	some of popul­ation/area (10–49%)	slow decline (1–10% over 3 gener­ations)	medium

Response (conservation actions taken for the trigger species and/or their habitats)
Designation	Planning	Action	Result
Whole area (>90%) covered by appropriate conservation designation	No management planning has taken place	Some limited conservation initiatives are in place	low

Habitat	% of IBA	Habitat detail
Marine Neritic	55
Marine Intertidal	20
Grassland	10	Mesophile grasslands; Machair
Artificial/Terrestrial	5	Ruderal land
Forest	5	Mixed woodland
Shrubland	5	Scrub
Marine Coastal/Supratidal	minor (<10)

Land use	% of IBA
fisheries/aquaculture	60
agriculture	35
urban/industrial/transport	5

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Lambay Island (Ireland). Downloaded from https://datazone.birdlife.org/site/factsheet/lambay-island-iba-ireland on 23/12/2024.