Ok, thanks for this information. We have a massive chipmunk population (oddly not many squirrels) and as a result our hens’ run is fully enclosed in hardware cloth (with sand in the run, the coop is also inside the run). Do you think we should put hardware cloth on the floor of the meat birds’ run?
I would not, unless it's buried under sand or dirt so their bellies don't rub on it. I'm serious; these birds will spend 95% of their time lying on their bellies. They will rub all the feathers off. They get up to eat, but often sit while eating. They'll waddle over to a waterer, get a drink, then waddle to a patch of grass and plop down. When the sun moves and that spot gets too warm, they'll waddle a little more to the next shady spot, then plop down again. They'll eat the grass and weeds in a semi-circle around them without getting up. You'll have to herd them into the coop in the evening, where they'll find a bare spot of floor and plop down until morning. I would not put hardware cloth anywhere they will lay directly on it.
I’m learning about different feeding schedules and don’t plan to offer them 24 hour access to food once outside. I also want to keep maintenance to a minimum (so if I can keep their feed and feeders in the run for refilling overnight it would be helpful given the distance from the house).
You are absolutely correct. These eating/pooping machines will absolutely convince you they're starving if you don't keep the buffet stocked and open 24/7. They are hard-wired to EAT and don't realize when they've had enough. Please DO put them on a feeding schedule with measured amounts of feed according to their age and weight. If you overfeed them, they'll develop split skin over their backs and shanks (BTDT), leg deformities (BTDT too), and are prone to heart attacks (haven't had that misfortune). Feed them per the schedule, and they'll grow appropriately and stay healthy.
I can't find my reference at the moment (But I'll look for it and send it to you if you're really interested), but I remember they do need 24/7 access to feed for the first - what, 2 weeks I think? After that, you have to weigh it and measure according to a schedule. I split my birds' feedings into two per day - mornings, and late-afternoon (so that they could digest most of it before bedtime).
Besides feeding, most of your daily chores will consist of cleaning the coop, health checks, refilling waterers (they drink a LOT), scooping more poop, and supervising while they eat to be sure everyone gets a fair share. Watch for any who don't seem to be putting on as much weight as the others. Their care is nothing like raising other chickens; these little guys need close supervision at mealtime. You can't just put a feeder out and walk away.
I guess that would make sense to hardware cloth the run floor then, right? But then what material should I put on top of that? Right now it’s leaves and pachysandra.
If you must put hardware cloth on the run floor, then by all means do cover it thickly with dirt and/or sand. Keep in mind that they will EAT anything you put on their floor, so be sure it's edible and won't cause issues. (No grass clippings, for example; those can cause impacted crop.) I'm not sure about leaves; but that just seems like more unnecessary work.
Having raised several batches of these birds myself, I can't see raising them on anything but bare dirt and green grass (while it lasts). They poop SO VERY MUCH that trying to keep clean bedding in the run would be a constant fight. I could maybe see sand, but even that would have to be sifted through - and that's more maintenance.
I really do just recommend you build the run fencing tight to the ground, and bury an apron of hardware cloth around the perimeter to keep out the vermin. It doesn't have to cover the floor of the run.
It occurs to me suddenly that might be the reason you're wanting hardware cloth on the floor - so you can leave feeders (maybe with feed in them) inside the run, but where the chipmunks can't get to them. Am I right?
If so, that's moot. The chickens will always empty their feeders down to the last tiny crumb and leave no morsels whatsoever for the chipmunks to find. It's just what they do. So you can safely leave feeders in the run overnight with no risk. Just fill them on your feeding schedule, they'll clean 'em out for you, and don't worry about the chipmunks.