At what age do White's tree frogs (the males) start calling? I am almost positive that my white's is a female. I've read that it's hard to tell on young white's and even adults unless they talk or lay eggs. Mine is too young to lay eggs and possibley to young to start calling. I want to be absolutly sure that my white's is a male or female because I want to name it. Right now, it's name is Nelly (given that I believe it's a female.) I've let my phone start doing the white's mating call close to his/her tank and no response. Please help, I have no idea what to think!? ;p