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To cope with a noisy problem, Hawaii calls on Keevin Minami, a specialist with an unusual talent: He speaks coqui. …

“Ko Keee…Ko KEEE” he chirps to demonstrate the male coqui’s mating call he learned by standing under trees and mimicking them. Mr. Minami’s coqui locution is so precise he draws the females out.

Property owners at their wits’ end call him in to help them get rid of the frogs. Armed with a head lamp, he chirps under trees until the frogs jump into what he calls his “coqui wand,” a tube with a plastic bottle at the end that passes as a trap. …

The frog has brought noisy trouble to paradise, and Hawaii is officially at war with it.

Coqui frogs chirp at night at up to 90 decibels, roughly the noise level of some lawn mowers from about a foot and a half away. Locals and tourists complain they can’t sleep for the racket. …

Photo courtesy USFWS/Southeast.

—Chad Blair