Black-cheeked Ant-Tanager

Reproductive Ecology

Detection and Description of Nest Predation 2022

The Black-cheeked Ant-Tanager (Habia atrimaxillaris) is an endemic bird to the Osa Peninsula and is considered to be a Red-Listed endangered (EN: IUCN) species.  A new body of knowledge is in the process of being formed but there is still a lot to do in order to properly mitigate this species decline and manage for its future protection.

Now that Arlet Quiros has finished her thesis work on the reproductive ecology of the Black-cheeked Ant-Tanager, its time to take those next steps based on her findings. With 22 nests located and a greater than 90% nest failure rate we are asking the question why? What are the causes of nest predation and how do we detect it? 

With the support of Dr. Katie Stumpf PhD at Georgia College, and expert in reproductive ecology and the use of nest cams, Arlet and the Biological Monitoring Group of Rancho Quemado will be working with Katie to place cameras on nests to determine the causes of nest depredation at the two study sites; Dos Brazos and Rancho Quemado.

Project Objectives

  • Determine the causes of nest predation with the use of nest cameras, and collect habitat data
  • Determine the nest success and associated habitat characteristics of the Black-cheeked Ant Tanager.
  • Provide research opportunities for 2-4 undergraduate and 1 graduate student in biology and environmental science
  • Work with stakeholders to develop a Conservation Action Plan