Oaks ARE a food forest for birds and bugs and small mammals and such. They create food chains. Oaks are particularly good at this. I think the best path is h

Oaks ARE a food forest for birds and bugs and small mammals and such. They create food chains. Oaks are particularly good at this. I think the best path is helping nature along to be the best that it can be naturally. There's a bunch of artificial gardening which would never sustain itself that ought to be avoided because it only looks like you're doing something worthwhile. I'd highly suggest reading up on different keystone species for creating year round food sources for your local ecosystem with native plants and help nature along a little with a light touch.