DozenChipper
Chirping
Do you have any links or pictures of the large bins you use? I was trying to think outside the box and considered getting 2 large raised bed (4ftx2x1) planters... I figured I could line the bottom and then come up with a cover and keep them in the garage (still pretty cold here outside) until feathers come in. And dual purpose- I could use for garden afterwards. Plus carry outside on a warm day for a little grass time while still having a windbreaker. My hubby was thinking of a bathtub but I'm really not crazy about it! Should I ask in larger forum?I like to use watermelon/pumpkin bins to brood. I cover the top with flexible garden fencing so they can’t fly out., and cut a side door in to open it if they want to come out. You could do this in the grass and leave the bottom piece of the bin out.
How will you heat the brooder if there is a top on it? Will it be inside of a predator-proof area? If not, I would 100% brood indoors.
Plastic tubs can work for a short amount of time, but the chicks outgrow it very quickly.