Feather damage BackYard Chickens - Learn How to Raise Chickens

BYC members my chickens are all mess up.. Any idea what this might be?? I noticed for awhile thought Mayb cage damage but closer look even the new feathers are showing signs of lines going across and looks like something eating at it Hen and rooster cage together Hen shows small signs this

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Any advice how to help my lady's grow their feathers back? Had

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