Sulphur-bellied tyrannulet Mecocerculus minor

This uncommon tyrannulet is found in the Andes from extreme western Venezuela to Peru. Look for a combination of yellow underparts, white eyebrow, gray crown, and buffy wingbars. Like other members of its genus, tends to perch horizontally, which helps separate it from similarly-plumaged bristle-tyrants. Singles or pairs forage with mixed-species flock, usually in the canopy or subcanopy. Occurs in subtropical forests and edges from around 1,600 to 2,800 m. Listen for squeaky series of “chew” notes.