That's a great idea with the apron! I painted gentian violet on the back of the ones that got picked on, I was told it hides the red color that makes them more eager to pick.
Do you have a rooster? We had a bantam that was so tough, his son killed a hawk!
The loveliest breed I had, was a Cochin - she brought up 3 generations of chicks for us from other hens, she'd hatch all their eggs if we'd let her! She was so protective of her babies, and a wonderful mother.
M 16 yrs, WH62, P54 3 adult blended kids EA 11/13, BD1 6/14 PA fall 14, BD2 2/15 Piecing 2015, BD3 12/15 Separated 4/16 WH moved OW in 5/16 Divorced 6/15/17