Newbie chicken lover/member here, looking for some input from those more experienced than I. Recently acquired a mixed flock of girls (3 red links, 3 barred rocks, 4 EE, all living with my Sumatran roo). The RL and BR are older, 18ish months old and were all finishing up their molts when I got them as cast offs from local small egg farmers due to their age. The EE are all younger, around 6-9 months old. I have a small coop I got from TSC with an enclosed nest box and small attached run that they are closed into at night. They have free range of my barn and grounds during the day, as well as free choice access to the coop. They had been living like that for about a month, eating Dumoor 16% layer feed from TSC. I'm slowly switching them to Poulin 18% layer now. Free access to oyster shell, and they get a few handfuls of scratch grains and black oil sunflower seeds in the AM & PM along with a sprinkling of dried mealworms. I'm trying to locate granite grit, but I do live in NH... Granite state? They find it in the yard? I'm still looking so I can provide it in the coop. Kid at TSC didn't know what I was talking about and feed store doesn't have it. ::Sigh:: Story time. Last week we had a severe cold snap (0° with wind chill temps in the -20°s). My coop is in the barn with my horses, which keeps the overall temp around fifteen degrees warmer than outside, so I tucked everyone in really cozy, and went in for the night to defrost my own self. The next morning I came out to four sick kids, three girls and my roo. Sneezing and gurgling. I immediately quarantined the sick birds in the coop and converted one of my horse stalls into a coop for everyone else. Spent all day disinfecting everything in the barn and coop. Built them nest boxes and roost bars, hung food/water/OS, hung a light in the stall about 6 1/2 feet high. For the past 7 days I've been treating everyone with Oxytetracycline (even the asymptomatic girls, just in case). Three of the four sick kids have gotten better and were allowed back with everyone else in the stall coop two days ago. Since the day I discovered the sick kids and moved them, I've only found two eggs, both from one of my EE girls that didn't get sick. I had a red heat bulb in the stall coop during the frigid days, which I switched to a white UVA/UVB bulb two days ago once it warmed back up. I have it on a timer, switching on at 6am, off at 10pm. I leave it on all day since my barn is really dark and it helps me see too. They've been under the light for 8 days, white light since Friday. A lot has gone on with these poor birds in the past week. Cold temps, a house change, antibiotics... My question, after all that, is when might I start to see eggs again? I had been getting 1-3 eggs a day in the small coop before the move, which wasn't lighted, but under the LED bulb in the barn, so it got some ambient light. Does the red bulb give enough light for them to keep laying, or just the white? I did see my roo covering the girls for the first time since he got sick tonight, which was encouraging. I know chickens don't like change, and I can't eat the eggs right now anyway, but I want to know they are happy and healthy more than anything. Sorry for the novel! Any constructive thoughts or advice would be greatly appreciated! Thanks!