Hello! My 1.5 year old Rhode Island Red has been, for two days, acting sick. Usually super active and energetic, she now stands or sits by herself with a droopy comb and tail. I have isolated her from the rest of the flock.
These few months I've had chicks with the flock and withheld calcium, and she's been laying soft shelled eggs for two months. However, the other hens have been fine with no problem. This may be a matter of calcium deficiency, but because none of the hens have similar symptoms, it may be something else. Here are some pictures, including the poos she's been making. These poos are yellow and look like they have egg yolk in them.