I googled that up, it's a fair description. They are very loud. There are some around here that are over a foot long, they may be the ones with the loud voices. It spooked me the first time I heard it, couldn't see the lizard, didn't know what was making the noise. Once we came home and there was a big one on the wall on the side of the house, at about eye level. It growled at us when we approached it.
Huh, that is pretty cool! I will have to keep my ears open should I ever be in Geckoland again.
Night all!