I've had 10 Guineas since late April. One was killed by the neighbors dog and I've had two disappear w/o a trace. A large male was the first one gone a week ago. Today, I'm missing a hen. She seemed to isolate herself over the past few days. I'm guessing that she is brooding but I haven't found the nest. I've had 3 nests that the neighbors dog destroyed. The fourth I've been keeping a close eye on. I'm in Pennsylvania. Any thoughts? Comments?