OLD MacDONALDsSTOP THAT PECKINcan help break your flocks pecking habit: spray on feathers when pecking is first noticed. Works on poultry and fowl to stop them from pecking on one another. Apply to birds that are newly introduced to the flock as a preventive measure. Do not apply to the head, comb, wattles or eyes, nor to red and raw skin. Non-toxic weather-resistant formula