Mindanao Serin Chrysocorythus mindanensis

Rare and localized highland finch, restricted to upper montane forest and open scrubby and grassy habitats above the treeline. Generally not very obvious, often foraging quietly in dense growth, but flocks will sometimes betray their presence by flying overhead and giving a chorus of chittering twitter calls. Found only on a few high peaks in Mindanao. Combination of thick conical bill, bright yellow wing-bars, and well-streaked underparts are unique within this species’ range and habitat. Voice poorly known.