They lost the battle on the Big Island, according to a 2010 island-wide coqui task force report.

WSJ: When It Gets Too Noisy in Paradise, They Call the Frog Whisperer

But they were also dismayed to confirm that one place designated as critical habitat had not a single coqui guajon left.

NPR: Alarm Over Vanishing Frogs In The Caribbean

They have started finding the fungus in the coqui guajon and are still trying to determine how it will affect the population.

NPR: Alarm Over Vanishing Frogs In The Caribbean

Take, for example, the coqui guajon, or rock frog, which was the focus of attention by Lopez and Longo on a recent night.

NPR: Alarm Over Vanishing Frogs In The Caribbean

The high-pitched chirps of coqui frogs echoed among the vines.

BBC: Puerto Rico��s Pork Highway

Guests are kept company by a chorus of coqui, the ubiquitous native frog whose iambic croak gives it its name and Puerto Rico its natural soundtrack.

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Longo and Lopez, working for a research and public education initiative called Proyecto Coqui, have been trying to determine the health of the populations on those isolated patches.

NPR: Alarm Over Vanishing Frogs In The Caribbean

He and his wife have set up a nature preserve for coqui on Hawaii's Big Island and have posted a YouTube video as part of his campaign to sway Hawaiian hearts and minds toward coqui compassion.

WSJ: When It Gets Too Noisy in Paradise, They Call the Frog Whisperer