Yes, the birds love a rail to perch on! I built a rail over my Mom's tomato bed to tie them on, and they would sit there and foliar feed em.
I'm sure that's how she got such big tomatoes.
They like my 'moose rails' too.
Robins are pretty thrilled about the garlic beds. They spend hours patrolling the rows and it's just wide enough for them to be comfortable on pest patrol down there.
A little bit of well weeded ground is important for them, and they sure are worth it. But they like to work in pairs, so a rail for the lookout is icing on the cake... did I say icing?