Just thought I would ask if anyone else has had anything like this. I have 40 production reds. I use 3 one gallon waterers. One has a green base, one has a blue base (they are the same type) and one a slighly different type has a red base. I check the waterers several times during the day, clean, top up etc when necessary. What I am noticing is the waterer with the blue base is always empty first. I thought maybe it's the position (out of the sun, in the sun, less shade, more shade). So I have changed the position, with all the waterers over the last week or so, and you've guesssed it, still the blue based one is always emptied first. My question; Do chickens recognise and prefer different colours? Anyone any thoughts?