We started free ranging our first little flock of chickens in the back yard about a month ago and recently we've noticed an unbearable stench coming from our 9-year-old shepherd/golden mix. At first we thought it was her anal gland (it smells that bad!) but it's definitely coming from her mouth. Her breath is so strong I can smell it as soon as I walk in the house and I don't even want to be in the same room with her. Could this possibly be from eating chicken poop? Has anyone else experienced this problem? We haven't caught her in the act yet but wanted to eliminate this possibility before incurring a $50 vet bill to have her checked. Help!!