Yuppp. Leucs are semi arboreal species.So, they like to climb and chill on top. Have you heard you leucs call yet? My male likes to call while hes on the tallest point in the viv. I would double check the temp and humidity. Make sure the boundaries of your viv, like does the temp differ from top of the viv to the bottom. How long have they been established in the viv? If its a new viv they would have to get use to it.Just got 4 new Leucs, about 405 months old each. They all like to hang out in the corners of the viv. Any ideas? Is this normal?