We got 3 week old chicks from the feed store. I was told I really don't need a light if I keep them in the shed or the garage where it is warmer. I have them in a dog crate in the garage. But I am wondering if they should be in a box with a light because I just went out to the garage and it's about 75-80 currently. And it will probably be cooler as the weather cools. And, they are really skittish. How can I get them used to humans and not afraid? Thanks.!