Desembocadura y Estuario del Río Maipo

Location

San Antonio Province, Chile

Category

Regional

Basis for Designation

Supports more than 1% of the biographical population of Whimbrel and the pitanay subspecies of American Oystercatcher.

Size

140 hectares (346 acres)

Date Designated

July 2015

Site Owner

Municipality of Santo Domingo
Municipality of San Antonio

Site Partners

Museum of Natural History and Archaeology in San Antonio

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Overview

La Desembocadura y Estuario del Río Maipo is located between the towns of San Antonio and Santo Domingo in the San Antonio Province, Region of Valparaiso, Chile. The approximately 140-hectare (346-acre) site includes sections of beach, sand bars, estuary, grasslands, wetlands, shrublands, dunes, and river mouth. A total of 132 species of birds have been recorded within this ecosystem, plus many fish, reptiles, amphibians, and mammals.

The area was designated a WHSRN Site of Regional Importance for hosting more than 1% of the biogeographic population of two species: Whimbrel (Numenius phaeopus) and the pitanay subspecies of American Oystercatcher (Haematopus palliatus).