Can Crickets Really Tell the Temperature?

[Ivan Seeking]

This happened to come up the other day, and since Tsu just sent me a link, here you go.
http://www.almanac.com/outdoors/crickets.php

True or false?

 

[Mech_Engineer]

True, as long as they are Snowy Tree Crickets.

http://en.wikipedia.org/wiki/Dolbear's_Law

Dolbear's Law states the relationship between the air temperature and the rate at which Snowy Tree Crickets, Oecanthus fultoni, chirp[1]. It was formulated by Amos Dolbear and published in 1897 in an article called The Cricket as a Thermometer. Dolbear expressed the relationship as the following formula which provides a way to estimate the temperature TF in degrees Fahrenheit from the number of chirps per minute N...

...The chirping of the more common field cricket is not as reliably correlated to temperature — its chirping rate varies depending on other factors such as age and mating success.