In may 2010 I bought 6 chicks at 10 weeks old. 2 welsummers one cock. 2 p0lish one turned out to be a cock, one black rock, one cream legbar, my welsummer hen was about 24 weeks and she looked ready to lay her first egg = I could feel it = but it never came. egg bound I decided . I bathed it and sill no move. after a week i sought help and discovered that the 'egg' was growing apparently it was a tumour. it got larger and larger. my supplier took it back and asssured me it was a one off. meanwhile the cock wellsummer went off his food and stopped crowing finally despite best efforts and nutri drops he died. Again I'm assured it was a one-off how unlucky can you get. ther was no sign of sickness in the rest of my little flock and no sign of outside influences like poison anwhere in my yard. But i was worrried. then my polish cock, a beautifol bbird with a great temperament stopped crowing. I tried nutri drops, cat food and everything else I could but then he developed a tilted head! it was getting worse. I contacted my supplier who was concerned and as clueless as me. finally I took him to a specialist avian vet who took him in for a few days gave anti biotics, tube fed him and gave lots of tlc. no improvement so he advised we put him down and so it ws done, later he asked permission to autopsy I agreeed. he foind a golf-ball sized tumour on his intestine and smaller ones lower in the abdomen and discharge in the brain which he said indicated a brain tumor too. in summary 6 chickens %50 dead in about 9 months 2 of them with tumours one confirmed, and one suspected at least by me. Has any one else had a similar experience? of can you offer an explaination? I;m confused . my problems anre not environmental as far as I can determin. unless there was fall out near the breeders location = HELP!