Help please. I have a 1yr old Bantam, mostly free range and fed organic feed. She has been sick for a couple of weeks, but still able to get about. All other birds are fine. Her symptons are sore, swollen red breast with loss of feathers, lethargy in morning and evenings (she goes to roost very early). If I pick her up she produces spittle. I have not given her any treatment or medication. Would be grateful for any advice. Thanks!