hi i have 3 seperate group layers, growers and 1 hen and chick. 1st hen and chick breathing difficulties/mucus nose last sat hen died suddenly sunday morn chick 10 weeks gave baytril 2nd hen 28 weeks ( hatched by me in incubator this easter) same symptoms but with swollen face. Took her to vet this morning she prescibed baytril and eye drops, said temp was high, took her home she seemed no worse, gave her baytrill and eye drops. Then 10 mins later she had convultions and died. Took her bak to vets for an autopsy and while we were there 10 week old had a fit too and died. have got whole lot on baytrill now. Any ideas ? all other hens seem ok all eating well no symptoms. the worrying thing is they are in different groups and houses and have never come into contact with each other. They all free range in separate areas. We have a lot of pigeons/wild birds and a badger set in the woods at the end of the garden wondering if these may have bought something in? is there any way i stop this spreading? Any ideas would be gratefully received.!! I've had a very stressful few days.