I just had an interesting conversation with the lady at the feed store. She said she feeds medicated starter for the first three months and then switches to laying feed. She said chickens are sexually mature at 3 months and that's when they should start laying eggs. This seems contrary to everything else I've read about changing at 6 months. This woman has raised chickens successfully forever. Is she right? Is she wrong? Is it possible that it really just doesn't matter? On a side note: my chickens are now 2 months old. They do not roost at night. They roost on an old bench I have in their yard during the day but in the henhouse at night they al clump together on the ground. Is this a problem?