This striking vireo is found in the canopy of lowland forest in northern Colombia and western Venezuela. The lime green upperparts contrast with a bright yellow eyebrow and throat, fading to paler yellow on the belly. Note the blue crown and thick bill with slight hook at the tip typical of vireos. No other species are bright green with such a hefty bill. Look for singles or pairs moving slowly in the trees, sometimes with a mixed-species flock. Sings a song with a few descending whistled notes.