You put out feeders to attract birds because you enjoy looking at them, not as some form of avian food stamps.
I can watch the birds just fine without putting out feeders which, ultimately, attract many dozens to the yard.
This last spring, without putting out a feeder, I watched a male dove courting a female on my back deck. From my office at work, I observed a goose nesting on a muskrat mound. Then the goose disappeared from the mound, but near the road was a pair of geese and five tiny fluff balls. I watched those fluff balls grow over the next three months until they looked just like adults and went off to join the juvenile goose colony. And so on.
There is no need to set up a bird welfare racket in order to watch birds.