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Isla Bolaños Wildlife Refuge

Isla Bolaños National Wildlife Refuge in the Bahía Salinas was established to protect nesting sites for Brown Pelicans and Magnificent Frigatebirds.  The windy ridges on the southwestern side of the island are isolated from predators and provide perfect launch pads for the adult’s fishing sorties into the coastal waters.

Isla Bolaños National Wildlife Refuge from Playa CoyoteraBrown pelicans are common along the Pacific coast from the northern United States to Peru and are often seen skimming the waves parallel to shore against the horizon.  They nest at several sites in Costa Rica with the biggest colony on Isla Guayabo.  About two hundred pairs of frigatebirds breed in residence at Isla Bolaños and in smaller numbers at the only other nesting location in Costa Rica-on a small island west of Isla Guayabo in the Gulfo de Nicoya.

Pelican divingFrigatebirds and Pelicans both build nest of sticks and twigs in the top of the paira (Melanthera nivea), or frangipani (Plumeria rubra) shrubs, and crown fig (Ficus ovalis) trees that cover the island.  The most concentrated nesting activity occurs in January and February, but especially the frigatebirds have a protracted season and can be seen from November to June.

Fishing launches from Puerto Soley can be hired to view the nests from offshore.  Landing is not allowed no matter how tempting the pristine white sand beach looks.

Quick Facts Isla Bolaños Wildlife Refuge

The island is small, just 25 hectares but protects some of the most important rookeries in Costa Rica.  Visitors are prohibited from landing on the island, boats must maintain a distance of at least 50 meters.

Ray & Sue

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Refuges
  • Cabo Blanco Absolute Nature Reserve
  • Monteverde Cloud Forest Reserve
  • Hacienda Barú National Wildlife Refuge
  • Rainmaker Biological Reserve
  • Punta Mala-Playa Hermosa National Wildlife Refuge
  • A M Brenes Biological Reserve
  • Barra del Colorado Wildlife Refuge
  • Caño Negro Wetlands National Wildlife Refuge
  • Curi Cancha Wildlife Refuge
  • Gandoca Manzanillo Wildlife Refuge
  • Isla Bolaños Wildlife Refuge
  • La Selva Biological Station & Reserve
  • Lankester Orchids Botanical Gardens
  • Lomas de Barbudal Biological Reserve
  • Tirimbina Rainforest National Wildlife Refuge
  • Wilson Botanical Gardens
  • Rescues & Zoos



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