I get upset when I lose one of the senior tribe members. My view and hope is they got to be senior because they learned how to survive and would pass their knowledge on to future generations. My most recent senior hen death was due to illness and at 9 years old she had lived longer then many.Grrr lost one of my older guinea keets. It just up and disappeared. It got out of the run somehow. Hopefully it shows back up.
I hope you find her living.