I thought only the males called too. I have recently purchased two more RETF's one is an Albino. The owner said these two have never made a sound. I got them in the vivarium with my retf and now the two that I bought are calling. what does that mean and what do the male calls sound like compared to the females. Mine still has not made a peep.
a pic of Albert the Albino retf
Name: albino retf.jpg Views: 2106 Size: 6.1 KB