Hi everyone, I have a flock of 4 hens (1 Isa Brown, 1 EE, 1 White Leghron, 1 Barred Rock) and I have noticed that the isa brown and leghorn have started pecking my EE. My flock had issues with pecking last year when we had 8 hens. 2 died and we had to kill 2 because of it. These 4 also had a pecking issue but we gave them a higher protein feed and it seemed to stop. We have a 72 sq ft run and we let them out after work everyday. What can we do to stop this issue for good?