Plain-backed Sunbird

ID Features: Small, short-billed, warbler-like sunbird. The distinctive male has a blue bib. The female is drab but can be identified by its small pale eyebrow, greenish back, and overall size and shape. Most distinctive vocalization is a rapidly repeated "tchew". Shape, size, and olive-green back separate Plain-backed from other sunbirds. 
Habitat: Found in forest at low elevation, mostly close to the coast. Often in forest understory; less conspicuous than a typical sunbird. 
Locations: Currently none.