A live, in-browser chorus of eastern banjo frogs (pobblebonk, Limnodynastes dumerilii). Each frog calls on its own jittered rhythm; the coupled modes make frogs react to calls from their neighbours and are hypothetical, borrowed from Japanese tree frog models rather than measured banjo frog behaviour.
The pond
Real chorus for comparison
A field recording of actual banjo frogs. See how close the synth gets.