Thats the way it used to be with my red-eyes and thats the way it is now with my tomato frogs. My red-eyes are now much bolder I think because I have bred them. They will even call when I'm standing righ next to them. My fire-bellied toads will from my hand. The tomatos still shup if I approach them. The were calling the other day and I was standing right next to the cage, however I could not see them, and chances are they could not see me.