Eheh, i think about that before, but i want a little more control so i hope to hire my chicken to do the job
As i'm little nerdy, i searched about digestive time of chicken, and i found an article about number of hours to poo (see attachment, from "Passage rates in poultry digestion using stable isotope markers and INAA"),
Here is my plan : isolate birds for 6 hours (not necessarily without food but without seeds) before night, then feed targeted seeds (seabuckthorn, goji ?), lock birds in the coop, and harvest the precious seeds-and-fertilized package in the morning
permaculture can make people doing weird stuff
