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Mariana Swiftlets in flight

By Pacific Island Ecosystems Research Center
Looking out from Mahlac cave entrance in Guam, this skyward view shows swiftlets in flight on a backdrop of clouds.
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Detailed Description

Looking out from Mahlac cave entrance in Guam, this skyward view shows Mariana swiftlets in flight. PC: E. Paxton, 2021.

Sources/Usage

Public Domain.

Photo provided by USGS scientist Eben Paxton.

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