Osa Peninsula Chronicles

Of the over 850 bird species listed in Costa Rica, 3 are mainland endemics.  In other words they are unique to Costa Rica not found anywhere else in the world.  Two of the three species are endangered and one of them is restricted solely to the Osa Peninsula.  That restricted endangered species is the Black-cheeked [...]

This little golden chatterbox is endemic to Costa Rica and Panama.  It is found in the southern Pacific slope from Carara down through the Osa Peninsula.  Like most birds it is reliant on the remaining intact forests and begins to disappear where forests become fragmented.  This is why large tracks of forest found on the [...]

By Karen Leavelle & Jeff Woodman The Osa Peninsula is known for its high level of biodiversity and is one of the most “biologically intense” places on earth according to National Geographic. The Osa has over half of all species found in Costa Rica. This is evident in the over 400 bird species found here. [...]

If you want to see a Black-hooded Antshrike (Thamnophilus bridgesi) then Friends of the Osa’s Osa Biodiversity Center is the place to come.  They often love living on the edge, forest edges that is, and for those us who live at or visit the Center they are an easy species to enjoy and tick off [...]

Also known as the Beryl-crowned Hummingbird the Charming Hummingbird (Amazilia decora) is regionally endemic to the Southern Pacific lowlands and coastal areas of Costa Rica north to Carara and Panama.  It is sometimes considered conspecific with the Blue-chested Hummingbird found on the Caribbean slope as they are nearly identical.  You will often see them in [...]

Of the 22 species of wrens found in Costa Rica, 6 are found here on the Osa Peninsula.  The Riverside wren, a common resident on the Osa, is only found in the southern pacific lowlands of Costa Rica and western Panama up to ~1,200 m.  Wrens as a whole belong to an interesting family of [...]