I'm just hoping others will jump in here and help (both of us) out. My feeding regimen is unorthodox in the extreme and I think others will certainly be able to help to get your own feeding system laid out to suit your needs.
As for the grit, I (like most, I believe) keep mine in individual containers, situated in various areas of the houses. You will likely only need one container for granite grit and one for oyster shells. My son is forever tinkering with things and has worked out a very simple and cheap container system. We're heavy coffee drinkers and those larger plastic canisters gave him something to play with. He first bolted two of them together at the wider handle area then affixed them in low traffic areas and high enough for the birds to get their heads into but low enough to where the grit is in reach to almost the bottom. They can be cleaned under easily and the birds know where they are. We keep oyster shell in one and granite grit in the other.
Just as an aside, my birds rarely use any of the oyster shells because they get ample calcium through their regular feeding but MOST people really need the OS for layers.
It would be helpful if you could name the breeds of birds and their age if possible. That will give folks something to work with in offering suggestions.
RON
I'm pretty certain I said granite grit which can be found in almost any store that sells chicken feed and supplies.
