Dr.Frye,
Yeah, my bicolor male started calling at about 11 months old.They are in the living room so they get kind of spoiled. I like watching them gobble up anything I can give them and think feeding them lesser waxworms has helped them grow up faster.Not much response from the females yet. One of them goes to him when he calls but he just sits there. Maybe he is all talk and no action, :lol: Other people have told me the males mature faster then the females do in phyllobates.Have you been feeding the orange terribilis good also? I really like the orange terribilis.In fact, when I traded Patrick some of my imitators I wanted orange terribs but he said he didn't have any and suggested some orange bicolors he was going to offer and I have been very happy with them.Good luck with them.
Mark W.