Two of my four dogs (one now at the bridge) have problems with chicken. They can eat small amounts of raw chicken, eggs are fine, chicken as an ingredient in dog food is ok as long as it isn't the primary protein. Chicken as a regular, main ingredient in their diet, bad news! I would call it "sensitive" to chicken, rather than allergic, but I am sure an allergy is possible. I don't think they could be allergic to just the white meat, though.