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The site was identified as internationally important for bird conservation in 2010 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
Magellanic Penguin Spheniscus magellanicus	LC	resident (2007–2008)	250-999 birds	A1
Humboldt Penguin Spheniscus humboldti	VU	non-breeding (2007–2008)	40 birds	A1
Red-legged Cormorant Poikilocarbo gaimardi	NT	resident (2007–2008)	30 birds	A1
Elegant Tern Thalasseus elegans	NT	non-breeding (2007–2008)	50-249 birds	A1

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2010. The most recent assessment (2015) is shown below.

State (condition of the trigger species' habitats)
Habitat	Quantity (% remaining)	Quality (% carrying capacity)	Result
Marine Neritic	-	good (>90%)	good
Marine Coastal/Supratidal	-	good (>90%)	good

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
No known threats	happe­ning now	few indivi­duals/small area (<10%)	no or slight decline (<1% over 3 gener­ations)	low

Response (conservation actions taken for the trigger species and/or their habitats)
Designation	Planning	Action	Result
Little/none of area covered (<10%)	No management planning has taken place	Some limited conservation initiatives are in place	very low

Habitat	% of IBA	Habitat detail
Marine Coastal/Supratidal	-
Marine Neritic	-

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Patranca Island (Chile). Downloaded from https://datazone.birdlife.org/site/factsheet/patranca-island-iba-chile on 22/12/2024.