Well I'm gonna go on the other side!! I use cat litter in my "nursery" coop on the floor!! Mine are from 8-14 weeks old!! I haven't seen one of them even peck at it!! And it sure is easier to clean with a litter scoop!!
Missi
Same here, my chicks never eat it. I don't use any expensive clumping or perfumed kind either. Prefer pine shavings, but cat litter seems fine in a pinch, like when the planer blade breaks, lol
Cat litter is made of clay, usually zeolite, diatomite and sepiolite, none of which are harmful to chickens, some feed companies use these clays to prevent micotoxins in the feed and clay might help with parasitic infections too, similar to diatomaceous earth, so if the chickens eat it, probably more beneficial than harmful, as long as they're not gorging themselves with it and clogging up their system.
Note: watch out for any silica in the cat litter, usually in the perfumed, clumping kind, that you don't want the chickens to eat.
Chickens are a lot smarter than given credit, they know instinctively what not to eat, well, some aren't too bright, but mine free range and eat all kinds of things we're told they shouldn't, Healthy birds nonetheless.