Male crickets chirp by rubbing their wings, and per Dolbear’s law (1897), you can estimate the temperature in degrees Fahrenheit by counting chirps in 14 seconds and adding 40 – a survival hack for hikers without a thermometer!

In 2025, with climate change, this “cricket thermometer” gains accuracy for common species like the field cricket, but varies by type.

Females lack chirping wings, and the song also woos mates.