Squirrel Cuckoo
Birds of Panama - large bird photo gallery
The squirrel cuckoo (Piaya cayana) is a large and active species of cuckoo found in wooded habitats from northwestern Mexico to northern Argentina and Uruguay, and on Trinidad. It feeds on large insects such as cicadas, wasps and caterpillars (including those with stinging hairs or spines), and occasionally spiders and small lizards, rarely taking fruit. For more details from Wikipedia about the Squirrel Cuckoo please see this page here.
This image was taken near El Valle, Panama.