A large and noisy inhabitant of tropical and subtropical hill forests. Distinctive in its range; a large spiderhunter with a long, curved black bill and black streaking all over its yellow-green upperparts and lighter yellow underparts. Gleans invertebrates from foliage, but also hovers around and probes into flowers for nectar. Often moves with mixed flocks. Calls frequently, giving a loud, decisive-sounding “chitick, chitick!”.