i alternate layers between vegetable and animal (manure) sources.
I do not each chicken, but occasionally come across chicken bones
that have been in the compost or in the garden for many (10) years
from the previous occupants...

I sometimes add worms and dream of doing a project with the local
elementary school with their lunch time food garbage and a worm bin.
creating potting soil for a garden to grow veggies for their lunches...

this would have to be sorted, as i do not believe meat products compost well.