Meaning of the Sounds
The sounds the cokis emit are their way of communicating a message
between the two sexes. Slight variations in the intensity, repitition rate, and modifications of the different components
of the sound of their different notes all present different messages to one another. In the case of the Common coki,
it is believed that the co is used to establish interactions with other males, while the kee, is a mating call
that only affects the females - being ignored by the males.
Females prefer males with a relatively high repetition rate rather
than loud calls Short multi note calls are primarily aggressive and used in direct confrontations. Females produce
a rasping sound apparently employed to reject males. Although the kokee call may be heard anytime, the majority
of calls are emitted between dusk and near midnight.
Another interesting fact of the coquis is that their calls can
reach an extremely loud rate of nearly 100 decibles, enough to cause hearing damage for most if too close.
Their calls are sure to be heard by anything roaming the forest!