What is the lifespan of frogmouth?

4 to 6 years
Because there are many species of tree frog on several continents I will give you the two most well know.

The American Green Tree frog HYLA CINEREA Has a life span of 2 to 5 years in captivity.

The Australian Green Tree Frog LITORIA CAERULA Has a life span of 16 to 20 years. If the tree frog is living under good conditions, the longest it can live is about 14 years.