My buff o all of a sudden began acting very strange. She doesn't leave the coop and when I force her too she will sit on the ground for long periods of time with her feathers ruffled and wings slightly extended. She has stopped laying and is more aggressive with the other birds now. She was the runt and this is not like her to chase other birds and my scottie away LOL. She does not have an egg stuck in her "binding" I guess you call it- I checked her for that. But she does have some bright yellow almost orange colored poo mixed in with her regular poo. I don't see amy worms in her poo and the other birds are acting normal. She is eating less but drinking just fine. HELP!! What is wrong with her? The only thing I have done differently is I bought them some worms before I left from the feed store. What could be the matter with her?