Okay... we have a henspa (actually, I really love it--but it cost a very fortune). Anyway... it comes with a heated water bucket attached to the outside installed with little nipples at the bottom that line up with a hole in the wall for the chickens to reach their head through and get water. Looks like this: Up until now, I've kept a "normal" waterer in the coop--but it runs out SO FAST with 9 pullets aged 17 weeks on Monday. I noticed that when the girls free-ranged, a number of them would drink from the bucket. Since then, I have seen at least 4-5 of them drink from the bucket from inside of the coop. So I figured "Okay--they're drinking from the bucket" and I took the normal waterer away. I sat by the water bucket... watching to see which of my girls used them... trying to entice them to the openings with greenery. I know that most of them use it. But my two RIR's I have yet to see take from the bucket. Coincidentally, these two are usually the only ones that can't find their way out of the coop when the girls free-range. Should I worry about dehydration? How would I even know?? I'm a-skeeerd for my girls!