One of my golden laced wyandottes, "Noisy" is very sick. It started two nights ago and she is getting worse. I have separated her from the others in a small, mobile coop. We have started everyone on antibiotics. These are the symptoms: - yellow/white diarrhea (a lot) and messy behind - laid an egg with paper thin shell 2 days ago (while on roost) - lethargic, will not move off roost - when placed on floor she sits, not standing - not eating anything - swollen crop - no respiratory distress, mucus, or crusting - no discoloration of comb Noisy is about 1.5 years old, we have 12 hens and they sleep in a 10' x 5' coop at night, and have a large pen to hang out in during the day.We just moved the pen and sanitized the coop last month. We have a lot of wild birds and wild animals around. Our hens eat store bought crumble feed with occasional oyster shell, scratch grains, and garden scraps. These symptoms don't add up and I can't afford a vet. I am mostly worried for the rest of the flock, who show no symptoms. Any ideas what this might be?