Researchers are as yet unsure what environmental triggers may cause mink frogs to begin calling in the summer. Mink frogs have been known to call during the day and at night from June through July and sometimes into August. The Mink Frog Survey, a specific part of the Wisconsin Frog and Toad Survey, looks to answer some of those questions. (Contributed image)

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Mink frog calling survey is the newest addition to the Wisconsin Frog and Toad Survey

Researchers still looking for answers to calling trigger question

The Wisconsin Frog and Toad Survey is the longest running citizen science project of its kind, starting in 1984, meaning it is headed into its 40th year in 2024.

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• By Beckie Gaskill
• December 29, 2023