 The call is a "wree-e-eck pippip" with the second part of the call starting before the first part finishes.Tadpole metamorphosis takes 70 to 80 days.The northern dwarf tree frog is a member of the "Litoria fallax" complex, which includes also includes the eastern dwarf tree frog ("L. fallax"), Cooloola tree frog ("L. cooloolensis") and Olongburra frog ("L. olongburensis").