Why Do Peepers Peep? That nightly chorus that you hear on warm spring nights is actually a spring peeper mating ritual. The males of this species are calling out to the females, who are drawn to their chirping suitors. After the frogs mate, the females will lay eggs underwater.

Why do spring peepers peep in fall?

There are several hypotheses as to why these frogs are calling in autumn, but one has to do with environmental conditions. The shortness of the days, lower angle of the sun, increasing rainfall, and cooler temperatures are very similar to spring conditions when these frogs become active.

At what temperature do spring peepers peep?

In the case of the peepers, I tried several different base temperatures, and 3 degrees C (37 degrees F) worked the best. The analysis showed that when the thermal sum, calculated starting Feb. 1 and using a base of 3 degrees C, reaches about 44 degree-days, the peepers start to call.