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Mariana Swiftlet Roosts at Night

Detailed Description

Near infrared light camera shows dozens of swiftlets roosting at night. Near infrared (NIR) light is the wavelengths nearest to, but just past what is visible to the human eye on the electromagnetic spectrum. Swiftlets use their cement like saliva that hardens in air to create and attach shallow nests to limestone cave ceilings. PC: E. Paxton, 2021.


Public Domain.

Photo provided by USGS scientist Paxton Eben.