I second that...... most breeds by 4 years old lay at most 30 to 50 eggs a year.... mine laid maybe 15, I had 3 year olds left, eapecially if they're sexlinks that num will prob be 0 by 4 years, although I did have older non sexlinks ones go broody if they saw a pile of eggs..... if its eggs you are mostly after and they are not pets you see by the 2nd to 3rd gear their production goes down to almost half their fourth year it's down to 1/4 depending on the breed. And mine are living the life of Riley up here on my farm there's nothing they want so it's definitely not nutrition, housing predator or lighting.... but I have yet to rule out the egg stealing gnome....lol