© Eric Kershner
© Laura Keene
© Ray Duffy

Mariana Swiftlet Aerodramus bartschi

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Identificación

PROPORCIONADO POR MERLIN

A tiny, all-dark swift. Flight is fast, fluttery, and batlike. Usually observed flying continuously along ridges or over the forest canopy. Native to the Mariana Islands; introduced to Hawaii from Guam in the 1960s. In Hawaii, occurs only in the mountains of Central Oahu, seen primarily in Halawa Valley and the adjacent Aiea Loop Trail.

PROPORCIONADO POR MERLIN