Instructions
Find either a pet store that sells society finches or a society finch owner.
Observe the singing behavior of the society finches, paying special attention to those that sing and those that do not sing. The male of the species has a squeaky song during mating, according to the Finch Information Center. Females typically do not sing. However, when a female society finch does sing, there is a distinctive difference usually only picked up by an experienced individual. According to eFinch.com, the differences are hard to describe. Both male and females do make chirping sounds.
Observe the body behavior of society finches. According to eFinch, a male society finch approaches a female, as part of the mating behavior, with an upstretched neck and fluffed feathers, singing his song and bounces back and forth on the perch.