Hello everyone...I have been coming to this site over the past several years to read articles and other things relating to keeping chickens and have received so much helpful info! I am excited to participate in some of the conversations you have with fellow 'chicken lovers'. I have a brood of 12 chickens total, Rhode Island Reds, Americanas and Astrolorps with one big RIR Roo named Rocky. My entire family consists of 1 wonderful husband of 23 years, 2 teenage daughters, 4 cats, a Budgie and a Russion Tortoise. Sadly, we lost our big boy Bullmastiff to cancer about a month ago My big problem is that a few weeks ago I cracked open one of the brown eggs and it was NASTY! Dark green and watery with the most putrid smell I have ever experienced. It took hours with open doors and windows to get rid of. I have since had about 1 a week and have NO idea which hen is laying them. The girls all seem healthy and happy. I have been incredibly fortunate in that I have never had to deal with a sick chicken or any egg 'issues' ever in the 6-7 years I have kept chickens...so I am totally perplexed. Can anyone give me some advice on what this could be and how to stop it? Thank You!