Who We Are

Photograph by: Catalina Mora

Research

Photograph by: Manuel Sanchez

World Migratory Bird Festival

Photograph by: Minor Hidalgo

OSA BIRDS

Conserving Birds And Their Habitats On The Osa Peninsula Through Research And Education

Habitat Restoration

Osa Birds partnered with Tropical Wings and the Biological Monitoring Group of Rancho Quemado to restore fragmented and degraded habitat.

Citizen Science

Osa Birds monitors bird population tendencies through citizen science and research, and we collaborate with partners to develop conservation management strategies for species protection.

Community Outreach

Education is woven into everything we do!  We work to raise awareness of bird conservation and habitat protection within the local rural schools and communities through workshops and community events.

Taxonomic Redux 2021

In the last several years we have seen many changes to the taxonomy of the birds of the world, and 2021 is no exception! This year the American Ornithological Society’s committee on Classification and Nomenclature of North and Middle American Birds (the NACC) published its new 62nd supplement.

Checklist of Birds

Here you will find the newest updated Checklist of Birds for the Osa Conservation Area (ACOSA). The list is long this year as it includes not only the Osa Peninsula but all the ACOSA region including Bahia Ballena, Terraba-Sierpe, Golfito down to Punta Burica.

MoSI

Monitoring the overwinter survival of Neotropical migratory birds (MoSI) is an Institute for Bird Populations (IBP) collaborative network of bird monitoring stations across the Americas.  Read on to find out how the US Fish and Wildlife Service is partnering with Osa Birds and IBP to make Osa part of this integral international network in two strategic areas.

Osa Birds Gallery

 

News and Updates

Taxonomy Redux 2021

Taxonomy Redux 2021

In the last several years we have seen many changes to the taxonomy of the birds of the world, and 2021 is no exception! This year the American Ornithological Society's committee on Classification and Nomenclature of North and Middle American Birds (the NACC)...

Continuing to Beautify the Heart of Osa

Continuing to Beautify the Heart of Osa

In the month of July, we celebrated World Environment Day (June 5) and Arbor Day (June 15) by creating more habitat for birds!  Osa Birds received funding from Tropical Wings, a non-profit organization dedicated to birds and habitat protection.  With the support and...

Taxonomy Redux 2021

Taxonomy Redux 2021

In the last several years we have seen many changes to the taxonomy of the birds of the world, and 2021 is no exception! This year the American Ornithological Society's committee on Classification and Nomenclature of North and Middle American Birds (the NACC)...

Continuing to Beautify the Heart of Osa

Continuing to Beautify the Heart of Osa

In the month of July, we celebrated World Environment Day (June 5) and Arbor Day (June 15) by creating more habitat for birds!  Osa Birds received funding from Tropical Wings, a non-profit organization dedicated to birds and habitat protection.  With the support and...

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...