Back in Dec. I acquired a trio of Polish chickens. The hens were White Crested Blacks and the rooster looks like a mix between a Golden Lace and a White Crested Black. Last week my Polish hen died. It was fine running around and I was showing her off to my family. The next morning I found her dead in the coop. This happened about 3 weeks earlier with the other hen. I have no idea why, they appeared to be healthy and moving about with no problem. They were eating normally and everything. The rooster is still with me and misses his mates. I have no idea why this happened. My question is....... is this common with this breed? I'm wondering if I should get more of this breed. They are so pretty but they don't seem hardy. Unless, it is a fluke that this happened. The weather was very nice, in the 70's. We have not really had a winter this year so it leaves me to wonder why this happened. Yes, clean coop as well. No they did not free range but kept in a large pen.