This is our first year with chickens so we appreciate help from all the folks with expertise! One of our four Gingernut Ranger hens is approximately 8 months old and has never laid that we can tell. Her comb and wattle are pale and small and her ear lobes are pale, often blueish. She is spunky, attentive, likes to be held, and is the first one in line for food, but she doesn't seem to swallow as much as I see the other hens do and seems to be thirstier too. When I pick her up I can feel her breast bone sticking out because she is so thin. She can't weigh more than a pound or two! We feed the hens an organic laying pellet and occasional food scraps in the sandy coop run and then on weekends they free range in the yard. The coop itself is an Omlet Eglu. To date we've started adding about a tablespoon of apple cider vinegar to the coop nipple waterer (which is a converted gallon juice container) and as of yesterday have added DE to the feed and in the coop run. We'd like to treat her ourselves. Any suggestions?