Yes. That’s a vegetable garden. The green fence is actually a deer barrier. The deer won’t cross it. The owl is keeping the crows and mourning doves out of it, but the lesser birds know the great horned owls won’t bother them.
There are deterrents available that work pretty good for songbirds and other small birds and critters. They’re black metal, cat-shaped – both full-body silhouettes and faces are available – with clear green or yellow marbles for eyes. They work pretty well to keep birds away, but you have to move them from time to time or the birds get wise. Real cats work pretty well, too :-) but you don’t want them digging in your garden, either.