My rooster has dark emerald green, thickish droppings and I can see he is starting to quiver (mostly when walking). The green is NOT the normal green you may see. A few years ago, I had 2 other roosters who had the same symptoms. Slowly, they lost their ability to walk but their appetite seemed good. Eventually, they died. I have spent HOURS and HOURS surfing but have not found what it is from or, more importantly, WHAT TO DO!!!!