Explore the Sanctuary
An Ecosystem with Diverse Habitats
The coastal wetland at the mouth of the Maipo River is home to over 190 species of birds, both migratory and resident. This area includes grasslands, forests, scrublands, dunes, and adjacent ocean waters, making it an ideal habitat for up to 35% of Chile’s bird species. These birds come here to nest, feed, seek refuge, and rest.
Marsh
Situated along the estuary, this wetland features prominent species, including cattails, various grasses, and glasswort.

Hygrophilous scrub
This scrubland exists in highly humid areas, characterized by shrubby vegetation such as chilca and brea.

Estuary mouth
This is where the river meets the sea, creating mud and sand flats along its edge, where birds gather for food.

Beach and dunes
The sea deposits sediments that wind constantly moves and shapes, creating beaches and dunes.

Dune scrub
This scrubland is significantly shaped by sand and wind, featuring primarily shrubby vegetation that has adapted to these conditions, such as vautro and esparto grasses.

Miosporum forest
Although the miosporum is an introduced tree, it forms the only forest present in the Sanctuary, representing a remarkable refuge and feeding area for birds, rodents, Little Grison, and foxes.
