Isla Mocha

IBA Justification

The site was identified as important in 2020 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.

Populations meeting IBA criteria ('trigger species'):
Species Current IUCN Red List Category Season Year(s) Population estimate at site IBA criteria met
Pink-footed Shearwater Ardenna creatopus VU breeding 2016-2020 300-2,000 individuals A1, A4
Peruvian Pelican Pelecanus thagus NT resident 2016-2020 25-1,500 individuals B1a
Red-legged Cormorant Poikilocarbo gaimardi NT resident 2016-2020 20-400 individuals B1a
Elegant Tern Thalasseus elegans NT non-breeding 2016-2020 10-350 individuals B1a

The current IUCN Red List category may differ from that which was valid at the time of IBA criteria assessment (2020).

IBA Conservation

IBA conservation assessment
Year of assessment (most recent) State (condition) Pressure (threat) Response (action)
2014 favourable high medium
Was the whole site assessed? State assessed by Accuracy of information
yes habitat medium

State (condition of the trigger species' habitats)
Habitat Habitat detail Reference area (ha) Actual area (ha) Habitat quantity (% remaining) Habitat quality (carrying capacity) Result
Forest 2500 2500 - good (> 90%) favourable
Marine Coastal/Supratidal 500 500 - good (> 90%) favourable

Pressure (threats to the trigger species and/or their habitats)
Threat level 1 Threat level 2 Timing Scope Severity Result
Residential and commercial development tourism and recreation areas happening now majority/most of area/population (50-90%) moderate to rapid deterioration high

Response (conservation actions taken for the trigger species and/or their habitats)
Protected-area designation Management planning Other conservation action Result
Most of site (50-90%) covered (including the most critical parts for important bird species) A management plan exists but it is out of date or not comprehensive Substantive conservation measures are being implemented but these are not comprehensive and are limited by resources and capacity medium
For more information about IBA conservation status, please click here

IBA Protection

Protected area (PA) PA designation PA area (ha) Relationship of PA with IBA Overlap of PA with IBA (ha)
Isla Mocha Reserva Nacional 2,182 protected area overlaps with site 0


Habitat (IUCN level 1) Habitat detail Extent (% of site)
Marine Coastal/Supratidal -
Forest -
For more information about the IUCN Habitat classification, please click here.

Recommended citation
BirdLife International (2023) Important Bird Area factsheet: Isla Mocha. Downloaded from on 03/12/2023.