Chick losing baby feathers, adult feathers not coming in or coming in looking broken. Only chick in group of 7 having symptoms. Otherwise very healthy chick. Unknown breed. Started on the top of the back. Stomach still looks fine/normal. I don't see any bugs, slight dry skin or feather particles noted as a very light "dandruff".doesn't seem to be itching or bothered really at all by it. 1) What type of bird CHICKEN, age 3-4wks and weight seems appropriate for growth and weight. Comparable to other chicks of same age. 2) What is the behavior, exactly. Acting normally, alert, active, curious. Maybe spending more time under the heat lamp than the others but only slightly? 3) How long has the bird been exhibiting symptoms? First noticed thin baby feathers about 2 weeks ago only just on the top of the back. Adult feathers looked normal/no problems until this weekend when the began to appear broken? 4) Are other birds exhibiting the same symptoms? No. All other birds healthy, feathers thick, coming in great. 5) Is there any bleeding, injury, broken bones or other sign of trauma. No 6) What happened, if anything that you know of, that may have caused the situation. Nothing. These babies have gone strait from the store to my living room where they are set up in a little home until the weather warms up and they are big enough to transition outside. Other than in the store, they have not been anywhere but my living room and have not had contact with any other birds. 7) What has the bird been eating and drinking, if at all. Eating chick starter and drinking water. Healthy appetite. 8) How does the poop look? Normal 9) What has been the treatment you have administered so far? None 10 ) What is your intent as far as treatment? Whatever is recommended. Home-treat would be great, if I have to make a trip to the vet I will. 11) If you have a picture of the wound or condition, please post it. It may help. 12) Describe the housing/bedding in use. They are in a big plastic tub, natural alphalpha bedding no additives. Heat lamp in one half, plenty of temperature options depending on location in the tub for their preference. This past week they have shown interest in roosting so I've put in a small log they are enjoying sitting on. UPDATE I HAVE ADDED CHICK BOOST PROBIOTICS, VITAMINS AND MINERALS BLEND TO THEIR WATER, SOAKED THE CHICK IN ALL NATURAL POULTRY PROTECTOR FOR MITES, FLEAS, PESTS SAFE FOR CHICKS OVER 10 DAYS. FEED IS NOT MEDICATED BUT WILLING TO USE MEDICATED IF IT WOULD HELP.