I am also trying to grow enough feed to keep my flock busy, They also graze/forage. its more for the winter months where there may not be such a plethora of bugs. Currently growing for winter storage.. millies ( corn ) lucerne , mustard and sunflowers oh and quinoa and oats , I am looking for a source of buckwheat and flaxseed. I also have marigolds and spinach for greens.
apparently the marigolds and millies may produce a more golden yolk will let you know how it goes!
( based in sa but hopefully heading to NZ by the end of the year! )