My girls are almost 4 months old. One is already laying and we are transitioning to layer feed as the others are probably not far behind her. My question is, I have read that when they are chicks to keep food and water available at all times as they grow. Now that they are almost 4 months old, do I need to start feeding a certain amount or is it ok to leave the feed in the feeder bucket as we did when they were chicks. Don't want the girls to get porky. lol They don't seem to be eating any more than they did and even a bit less in this TX heat right now. Just wondering when or if I need to start measuring out a certain amount per hen. Their run is natural grass and they get the occasional suicidal bug crawling through and also there is mixed grasses in there for them to eat.