The call is described as hoots followed by maniacal laughter.

However, the most frequent call is commonly described as khraaaa-khraaaa".

A conversational call, also recorded, is given between individuals at the nest, and has been described as kent-kent-kent.

The call has been described as a maniacal cackling or barking.

The call of the northern leopard frog is sometimes described as a snore.

The call has been described as loud and creaky.

The calls are described as a cartoon most of the time.

Its call is described as a loud explosive ticking.

The call was described as sending people to New Zealand for the event.

The call is described as rapid, busy and metallic.