So we had two isabrown hens that we raised from week old chicks. They were about 8 months old. Two weeks ago one of them passed away. No signs of scuffle and she was happy, eating and laying that morning. A quick Google search tells me it's not all that uncommon for chickens to die for seemingly no reason. We got two new friends for our other chicken in the meantime, about the same age as her and they were all getting along well. However, today my other original chicken has also died for no obvious reason. At what point do I say it's just a coincidence and at what point do I get an expert in? I don't want to risk the lives of our two new chickens if it is something environmental. Also who would you call to assess your house to see what would be causing it? Thanks in advance. RIP Chick and Pea You will be missed.