I got to experience pine tar first hand today...I had just finished treating 5 chicks with it due to pecking put them back in the brooder as I would finish each one. It was like the parting of the Red Sea every time I'd put one back. The others won't go near them and if they try to shove under the others or cuddle, the others shake their heads and run. SHEW STINKY!! Now to explain... Last week I was in the process of closing in and fencing another chicken house behind the first one for these chicks(because it's really time for them to go out) and stabbed my hand to the bone with a knife trying to get the seed out of an avocado I was going to have for lunch. So been out of service til the last couple of days. Now have to wait til Monday to close it in, so it's getting a little crowded in the brooder. Which probably explains the pecking.