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Location Chile, Región de Valparaíso
Central coordinates 71o 37.70' West  33o 37.33' South
IBA criteria A1, A4i
Area 10,000 ha
Year of IBA assessment 2010

Comité Nacional Pro Defensa de la Flora y Fauna (Affiliate)

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Whimbrel Numenius phaeopus non-breeding  2008  1,500 individuals  unknown  A4i  Least Concern 
Grey Gull Larus modestus unknown  2008  2,000 individuals  unknown  A4i  Least Concern 
Franklin's Gull Larus pipixcan non-breeding  2008  10,000 individuals  unknown  A4i  Least Concern 
Elegant Tern Thalasseus elegans unknown  2008  1,400 individuals  unknown  A1, A4i  Near Threatened 

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Recommended citation  BirdLife International (2014) Important Bird Areas factsheet: Desembocadura del Río Maipo. Downloaded from on 25/10/2014

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