since we're all in 'how loud my ducks are' mode, i thought i'd contribute! they are way louder than my khakis, which are little 'ladies' in comparison with these roller derby girls on the other side of the fence. also the larger sized anconcas seem to be the louder for being the larger. i feel like naming a couple of them Bruce Dickinson and Brian Johnson. the former was the lead singer for Iron Maiden, the latter for AC/DC........!!!