Just the blue coat will work. Paint the little yellow ones blue.... its good to have on hand for bumps cuts and bruises on the adult chickens too. I dont know about the pine tar I use for hooves is pretty nasty stuff to get on your hands.On a side note, our cute little chicks became vicious little peckers. They had pecked on little guy to death while I was at work and my wife waas taking our oldest daughter to dance. They were working on pecking a second that we quickly isolated and within 10 minutes were pecking a third one that is now isolated as well. All of the ones getting pecked are Delawares, the only yellow chicks we have. The Delawares are not the littlest, or weakest(actually, none of them look or act weak), or the slowest. All we can figure is they're getting pecked because they're white. My wife is going to pick up some of the blue stuff from Tractor Supply and some Pine Tar. From what we've read, these two products will stop all pecking. We're just going to rub some on the tails of all 50 chicks unless someone here has a better idea.
deb