We got 5 new baby chicks today! This is my first time with baby chickens. When we got our first set of hens, the youngest one was 5 weeks old and didnt need a heat lamp. These little guys are only a few days old so they are under a heat lamp in a make shift brooder in my garage. I need to make a bigger area for them as they grow. I hope they can go outside at about 4 or 5 weeks but it depends on how cold it is outside.