I have been absent because it took me a couple of days to get though a neat book, The Business Hen by Herbert Collingwood (1904). It's a vailable on line. Interesting how they sourced protein for poultry feed a century ago.
I come back to this thread and there are five pages of sociology. I was born with a silver spoon in my mouth and enjoy both gluttony and the notion of subsistance agriculture.
Do you have the link for that book?
I find old poultry-keeping books fascinating.