frogs!!!

Question
hey,I am just wondering about my hyla cenarea tree frogs (american green tree frog) and how is it that you can tell if they are boy or girl

Answer
Dear Monty,
thank you for your question.
Male frogs are a bit smaller than the females and they have a slightly darker throat, the skin may be wrinkled. The most reliable sign that you have a male frog is calling.
http://www.pollywog.co.uk/americangreencaresheet.html
I hope I was of some help to you
Jennifer