Hello all, I have seven 3 month old English Orpingtons that I have been free-ranging for the past month. They are let out first thing in the morning with their coop door open all day long and they return on their own accord at nightfall. I have several huge feeders and watering bowls about the property for them, mostly near their coop though for convenience. Property size is about 1.8 acres. Hubs and I know that these are not Cornish-crosses and therefore will not be "beefy" or rapidly gain weight but they seem kinda "thin." :/ I pick them up and easily think they weigh about 2 or 3 pounds, if not less. Hubs thinks that they should be put in a run to ensure that they are getting enough feed as he honestly thinks they may either be not getting enough due to lack of intelligence or due to being too occupied exploring. We are located in Ohio and just had a frost last night so there isn't much bugs, berries, seeds out here yet. So, is 3 months old too young to free-range? Are chickens really "too stupid" to go back to their feeders and can possibly starve themselves? I honestly feel stupid for even asking. :/ Is there any signs I should be looking for? Stools seem normal, eyes are bright, no signs of illness except that they seem a bit thin. I see them stopping at the feeders maybe twice or three times during the entire 11 hour period of being out. Not sure how much they are actually getting but I do have to refill a couple of them during the period. They share feeders with 2 runner ducks and I mama Buff Orpington hen and her 3 chicks that are about 3 weeks old. I will add that there are about 4 feeders out and 4 watering dishes spread out so plenty to go around for everyone. I am feeding them a blend of Purina un-medicated chick feed, purina layer crumbles, purina scratch grains, purina oyster shell grit, some black oil sunflower seeds, cracked corn, etc. I would love advice on feed as well such as brands and which type to buy? Should they solely be on chick feed still? Am I okay mixing the different kinds? Thank you to everyone who reads and of course, to those who reply! Much appreciated!