Islas Guayabo, Negritos and Pájaros Biological Reserves

Islas Guayabo, Negritos and Pájaros Biological Reserves

Isla Guayabo is located approximately 8 Km to the south of Puntarenas in the Golf of Nicoya. The Negritos Island 16.5 Km to the south and Pájaros Island 13 Km to the northeast of Puntarenas. Guayabo and Negritos Islands where established as reserves with the Executive Decree Nº 2858-A on the 28th of February 1973. Pájaros Island was created by means of the Executive Decree Nº 5963-A. on the 28th of April 1976. Guayabo and Negritos Island have an extension of 143.5 hectares and the Pájaros Island has an extension of 4 hectares. The islands are home to abundant populations of sea birds, as well as species of flora typical to the area. Guayabo Island is an important rock that is 50 meters high, covered in some sectors by bushes and small spiny plants. Some species such as the Guaco, higuerón, Coyol palm and Pala Viscoyol are particularly common in this area. On the Islas Negritos, there is semi deciduous vegetation, such as species of white flower, pochote and Indio desnudo. In the fields there are areas of Piñuela casera and Palma viscoyol. In La Isla Pájaros, the vegetation is made up of short standing forest and areas of pasture. The mixed guava, the Guanacaste, the fig tree and the golden spoon bushes are very popular here. The fauna of the islands is mainly made up of seabirds. During some periods of the year migratory birds arrive to look for food and reproduce. The most common species are the frigate birds, the black headed gull, the brown caped gannet and the Pardo pelican. This last species uses the Guayabo Island as a nesting area and it is estimated that there is a population of around 200 to 300 birds. Other species of fauna include the peregrine halcyon, the white tailed dove and the black iguana. There are violin crabs, sea crabs, cambutes, oysters and a large variety of fish.