This year I let the birdseed grow itself under the feeders. It's created a lovely bed of sunflowers. Birds hop around under cover of the stalks at ground level. To be honest, Barnard enjoys crouching down on the perimeter and stalking the birds, but she's never caught one or even pounced, as far as I can tell.
The hummingbirds can often be found perching on the sturdy stems of the sunflower leaves!