What feed can I use for: chickens, ducks, geese, and turkeys

they will all eat rolled barley or rolled oats and layers pellets the layers pellets will work on all of them

Just because they r birds, does not mean u can feed them all the same thing. They have VERY different digestive systems, & very different nutrional requirments.

If u want chickens to lay eggs, you're going to have to give them a more nutritional diet. I would highly suggest any FRESH greens, not table scraps. Remember, you're eating what they're eating, essentially. For layers, their bodies r going to demand higher levels of calcium, proteins, & fats. You need a layer diet or a good broiler feed to support that extra demand on their bodies.

DO NOT feed game birds bread. You can actually kill them this way. The bread fills up their stomachs & has NO NUTRITIONAL VALUE FOR BIRDS!! It'd be like u eating candy all day & wondering why you're getting sick.

I suggest doing more research on the particular birds you're getting. If u can not afford the right diets, u probably should not be getting all those animals. They shoudl not suffer because you're feeling cheap.

Dont feed your chickens meat and scraps because its bad for them. Give them chicken feed or organic chicken feed. As for you other birds idk what food you should feed them. Bread maybe?

Hello
The rule of thumb for chickens is that you can feed them all scraps etc. meat or non meat apart from their own species. They all will eat bread which you soften with water for chickens.
So your food scraps are fine especially vegetables but all vegetable peelings are excellent and they will eat bruised fruit etc.