Do chicken feathers grow back after a dog attack?

Yes they do. We have 2 Dominique hens who were attacked by Jack Russel terriers. Feathers were everywhere and we assumed the birds were killed. We found both of them, bitten and stripped of feathers on their backsides. At the advice of our vet (why bring a $3.00 chicken for a $25.00 vet visit) we cleaned the wounds with warm water and kept the straw bedding clean and slowly the wounds did heal, the feathers grew back and you would not be able to tell they were ever attacked. Chicken are apparently very hearty birds.