Croaks, whistles, groans and even barking are all part of the calling vocabulary. Each species has its own specific litany that makes identification easy - at least for experts. With their well-developed vocal chords, it appears frogs have plenty to say about a variety of things.
If something or someone comes too close, frogs may emit a warning call. This short sound comes as it leaps, dives, or hops away. Even as they’re startled, frogs may be sounding out a “warning” to others that all is not well.
When frogs become territorial, that usually means they’re signaling for a mate. The two calls - mating and territory - are similar but with slight differences. Males make these calls as a warning for other males to stay away while alerting the local females they’re ready for a hook-up.
A frog under attack may issue a loud distress call. This is mainly to startle the predator, which in turn may cause it to release its prey.
Release calls are an amazing form of communication. Sometimes, in error, a male on the search for a mate will grab another male. A brief sound from the offended party sends an alert that this particular situation is not going to work out. Males are not always lucky in love with females, either. If the female has already mated, or if she happens to be a different species, she’ll sound a release call to back off.
With so many forms of communication, you can only wonder what they’re really saying.