ok guys, i need some advice! i went out to my chicken pen today and found my brahma/silkie mix "henrietta" just standing in one spot, not moving. she is usually a perky energetic girl i picked her up and she had green poop all over her butt!!! i have checked her crop and it is empty, she feels lighter then normal the area under her vent is a little swollen but not hard so i don't think she is eggbound. i brought her inside and she is in a box, resting right now. she acts lethargic and drowsy. she is around 4 years old and has always been healthy other then this. could it be worms? she has never had any vaccinations, she was hatched here. also i have offered her some unflavored yogurt and some lettuce, but she refused it! and she is usually a pig. she is not acting normal at all. what could this be? what else should i be doing for her? here is a picture of her poop caked butt before i cleaned it.