Also would like to know when i can put them outside in the coop, prefer not to put a heat source in there, it’s nyc so it’s 40s at night now and dropping to high 30s here and there
How old are they now? You want to go by feathering to determine if they're ready to go out in colder temperatures. I'd say as long as bodies are pretty well feathered in (about 70%) and as long as you've been weaning them off heat before they go out, they should be fine. For standard birds that'd be around 4-5 weeks or so, bantams might be a little bit longer?