Several of my hens have been shaking their heads for a while now. We went through the whole lice/possibly mites thing a month and a half ago. Then they got worms (only roundworms as far as I can tell), so I treated them for that as well. Some of them have been shaking their heads, and scratching. I dont think Gapeworm because they aren't opening their mouths and stretching their necks. I read a post on here about ear mites and how you could drop a few drops of vegetable oil in their ears to get rid of mites, but I have no idea how to even look into their ears. I think I know what their earlobe is....it is either white or red or whatever which usually indicates what egg color. Is there a flap I can lift up? I know that may sound stupid, but I have never examined a chicken ear before. I have gotten up close and personal with their vents, but never their ears. Help??!!!