I'll give my experience with chick temp. First batch I got was August last year. I hovered over them like a hawk. I checked the temp three times a day and made sure It was lowered 5 degrees each week. That was my parent stock. I didn't make it to fully feathered due to death in my family and they went into my pen I rushed to build so I could bury my grandfather. The next hatch, their babies, I didn't do as much. They dropped quicker in temp than their parents. I made sure clean bedding,and clean water, with ACV, I use plastic 100 gallon planters for first week brooder. Well I put them out in a chick coop I built out of old pallets, I still need to great stuff the cracks, and put some shingles on the roof, but I stapled plastic window covers to keep the wind out. They went out week 3, then brought them back in because it did get to low 40s for about a week. This last easter batch I decided to put out at a week with the first batch to see how they would do. I did feel bad because it was low 50s a couple nights , thAt mixed with being put in with 5 larger chick. Other than a few pecks from the 1 1/2 month ones they were in with they did fine. One of my splash , who did at first pick on them, adopted the chicks it seems, and sleeps with the babies under him/her. The rest roost up on the pallet ledges. I'm not saying this is anywhere near the best method, because ITS NOT. I did this really out of neccessity, and due to my impusiveness. I'm just trying to let new breeders/ chick owners know you don't have to worry too much. These little Huckabee's ---> chickadees, have to love autocorrect, we have are pretty hardy. I'm in Northeast Texas by the way.