thick-billed spiderhunter Arachnothera crassirostris

Dull and largely unmarked spiderhunter. Brownish olive above with a yellow belly, faint yellow crescents around the eye, and faint speckling on the crown. Gives insistently harsh, nasal chattering calls that seem disproportionate for its small size. Forages in the middle levels of foothill and lowland rainforests, gleaning insects and sipping nectar from flowers.