My chickens was peckinging the bottoms of the others. I tried everything I could think of. Pine tar was the last thing to try. Opening the can and seeing how thin the liquid was seemed like it was going to just drip down her leg. So I got to thinking and thought if I could make a salve out of it it wouldn't be as messy. I bought a tin of bag balm that you can buy at TS and put a large spoonful in a plastic jar and mixed some of the pine tar into that. The result was perfect. The tar still had it black horrible smell and I now had a salve to smear on their bottoms. You can Los substitute Vaseline if you can't find bag balm. The bag balm or Vaseline have healing properties and isn't as harsh as the pine tar by itself. It really works and the pecking has ceased.