(147 ha). It consists of four islands placed in Nicoya Bay.
It`s a perfect nesting site for wading birds. It`s covered by deciduous forests
(frangipanis, cedars, gumbo-limbo).
The biggest island Guayabo is rugged and prolongate. Served as a wintering
site of falcons. There are also the biggest nesting site of brown pelicans in
country. There is a tiny pebbly beach (a result of ancient landslide).
Pajaros island is almost completely round and dome-shaped.
The vegetation consists of low growing forests and patches of second growth
grass. The predominant species are ibises, ducks and herons. Negritos islands are composed of of basalts and breccias.
They are covered with semidecidous forests in which the predominant species are
frangipani, spiny cedar and gumbo-limbo. There live brown
pelicans.
