My hens are now 11 weeks old and 10 weeks old (4 of each). I have been providing them food and water up in their nesting/roosting box at night. They use their ramp to "put themselves to bed at sundown each night" which I think is adorable. Once up there, they hang out under the heat lamps and eat/drink. I was wondering how long (until they are how old) do I need food/water up there? They are free to go back down the ramp to the main food/water supply in their protected "yard" but never seem to leave the box at night.