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...