News and Updates

Reforesting Riparian Areas

Reforesting Riparian Areas

Today the Biological Monitoring Group of Rancho Quemado and the Junior Park Guards gathered to restore a degraded watershed along the Riyito River at the bridge entrance to Rancho Quemado.  Plants such as Heliconias, Episcias lilacinas, Calateas, Rubeaseas, Estococas...

Taxonomic Changes to Birds 2019

Taxonomic Changes to Birds 2019

Ver la Traducción al Español Abajo. The new common and or scientific names are highlighted in Bold below for birds found either on the Osa Peninsula or in the southern Pacific region of Costa Rica.  For other taxonomic order changes or merges/splits, please refer to...

Recuperando el bosque en el corazón de Osa

Recuperando el bosque en el corazón de Osa

En el proyecto “Estrategias de conservación de bosques y fortalecimiento de emprendimientos verdes en la comunidad de Rancho Quemado, en el área de amortiguamiento del Parque Nacional Corcovado”, actualmente ejecutado por Aves de Osa y financiado por el Canje I de...

Featured Bird: Chestnut-sided Warbler

Featured Bird: Chestnut-sided Warbler

See English Below Simplemente porque es de la famila Parulidae, la familia con más representantes de aves migratorias en la Península de Osa, les traigo la Reinita de costados castaños (Setophaga pensylvanica), la reinita y ave migratoria más común en Osa.  De solo 10...

2019 International Migratory Bird Day Festival

2019 International Migratory Bird Day Festival

At Osa Birds fifth-annual International Migratory Bird Day Festival, children danced in the streets dressed as flamboyant, richly colored birds, holding feathered wings aloft.  An integral piece that gives flight to this event is the Tropical Wings annual Birdathon,...

Featured Bird: Golden-winged Warbler

Featured Bird: Golden-winged Warbler

The Golden-winged Warbler (Vermivora chrysoptera) is a North American Neotropical migratory bird in the family Parulidae that breeds primarily in the United States and overwinters on the Osa Peninsula from approximately October through April.  It is a priority bird...

Featured Bird: Black-cheeked Ant-Tanager

Featured Bird: Black-cheeked Ant-Tanager

This months highlighted bird is very special in two ways because not only is it the bird that launches Osa Birds organizational website, but because it is also the only bird species endemic to the Osa Peninsula.  No other bird carries with it this auspicious...

Welcome Neotrops

Welcome Neotrops

NEOTROPICAL MIGRANTS ARRIVE! The Costa Rican rainy season marks the time of year when a large majority of Neotropical migratory birds arrive to the Osa.  Some birds arrive as early as August such as the Yellow Warbler (Setophaga petechia), and the Black-and-white...

White-crowned Sparrow

White-crowned Sparrow

This juvenile White-crowned Sparrow (Zonotrichia leucophrys) showed up mid November in the town of Rancho Quemado on the north end of the Osa Peninsula.  It was first observed by Yolanda Rodriguez Corrales who is a member of the Biological Monitoring group of the...