We have 3 red sex link hens and 1 bantam rock roo since Sept 14, 2009. All about 1 1/2 years. They have Purina Layena crumbles, grit, oyster shell and ACV water 24/7 in the pen-door is left open during the day. They are let out to free range all day, locked up at night. I give treats of whatever I have on hand-yogurt, birdseed, cooked eggs, oatmeal, wheatberries, kitchen/garden stuff, greens, bread, etc. Plus anytime they see me they come running, especially if I have a shovel cause they know I'll be digging (worms, bugs, etc.)-more like a chicken stampede. As you can tell, they eat all the time-yet still are skinny. I can feel the breast bone (keel?) on every one. Their crops are full but not hard, I've massaged them. (just in case I'm wrong-a full crop would look like a golf ball or ? in their right front pocket?) 3 days ago we dusted (garden/poultry dust in can) and wormed them with Pig Swig (Piperazine? for pigs and poultry) though I'm not sure if this would be enough because the label says "roundworms in poultry". Nice but what about other types of worms? I've seen posts on BYC to up their protein levels higher than 16%. But wouldn't they be getting that between the feed, treats and ranging/digging? Also wouldn't ya know the one hen that has all her feathers is the one that doesn't lay eggs. She eats plenty, drinks alot of water-more than others, ranges the yard pecking and scratching, but is slower than the rest, lays down several times though doesn't appear to be "pushing" just resting. I've not seen her dust bathing herself so much in the last week and now that I think of it I'm not so sure if the others have either since we dusted them. She does not seem to fly or flutter upwards, but is "grounded"(?). Poo seems normal, though she does poo in her bed and has it sticking to her butt feathers. If I don't get it cleaned out, then she just sleeps in another spot. I haven't found any worms in anyone's poo yet but may still be too early to tell. Her eyes are bright, combs and wattles are red-though seem a little lighter shade in the last few days. Her legs are a creamy color, and feet are more yellowish. The other hens legs and feet are creamy colored. She just seems so "bottom heavy". I'm not sure if she's egg bound, beginning to molt, or has Ascites and I can't take her to a vet, we just don't have $$. I've tried to feel for the "egg" though I've not tried putting my finger in her vent yet. But how long can a hen be egg bound and live to bawk about it? I'm thinking it more Ascites and that would break my heart since I lost my own mother last year to "congestive heart failure". I couldn't put the hen down for it, but would just try to keep her as comfortable as possible. I guess I'm just asking to get a more knowledgable and experienced persons take on this to either confirm or deny my bumbling diagnosis, other possibilities, ideas, etc. anything I'm doing wrong? anything more I could do without cost? Any help is greatly appreciated.