The Grey-throated Sunbird is a small Philippine endemic recorded in lowland woods, mangroves, coastal second growth, and coconut groves.
Males are metallic green from forehead to back, grading to purplish blue on the rump and upper tail. The sides of the face are maroon, the throat gray, and underparts greenish yellow. Females have a pale gray throat, olive-gray to brown upperparts, and pale greenish-yellow underparts.
It occurs in tropical lowland forest, mangroves, coastal second growth, and plantations, including coconut groves. The cited accounts detail habitat but do not establish a specific diet or breeding behavior.
An extinction-risk assessment has not been added yet.