I have four two male and two female. when about 1.5" the toad will vibrate and make a call when picking them up and that lets you know its a male. very horny toads! By May I can get fresh hoppers the size of erasers by the thousands. let me know if interested, or anyone else. pay for shipping and a Dollar a toad, it's yours! (originalyardog@gmail.com) S.C.