That would work to wait another week. We never know when a chicken will get sick and die. Sometimes they show signs that we may not recognize right away until too late. They are very stoic, and may be in pain, but not show it. I lost two 7-8 year old hens in the last month very suddenly. One was...
Chickens can have cecal poops which appear like runny smelly and shiny pudding or syrup—that looks like one, although a little more runny.
I would not treat with penicillin if she is not showing any signs of illness. I would try to find a couple of more hens to put her with. Waiting for her to...
It can be very hard to know what killed them without a necropsy. Knowing ages, what the crops felt like before they got sick, droppings, checking for a stuck egg, and any other symptoms would be helpful. The soft eggs sound possibly like a reproductive disorder, or egg binding. Something like...