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Location Chile, Región del Bío - Bío
Central coordinates 73o 27.73' West  37o 14.48' South
IBA criteria A1, A4i
Area 2,600 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 breeding  2008  865 individuals  unknown  A4i  Least Concern 
Franklin's Gull Larus pipixcan non-breeding  2008  13,000 individuals  unknown  A4i  Least Concern 
Elegant Tern Thalasseus elegans non-breeding  2008-2009  166-187 individuals  unknown  A1  Near Threatened 
Black Skimmer Rynchops niger breeding  2007-2009  1,240-2,860 individuals  unknown  A4i  Least Concern 

IBA Monitoring

2014 low near favourable negligible
Medium - based upon reliable but incomplete / partially representative data

Geological events earthquakes/tsunamis past (and unlikely to return) and no longer limiting whole area/population (>90%) moderate to rapid deterioration low

Wetlands (inland)   2600 2200 85 good (> 90%) near favourable

Little/none of site covered (<10%)  No management plan exists but the management planning process has begun  Very little or no conservation action taking place  negligible 


IUCN habitat Habitat detail Extent (% of site)
Wetlands (inland)   -

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Humedal-Estuario Tubul-Raqui. Downloaded from on 27/10/2016

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