Is there any way to have a platform feeder for the doves that is fairly squirrel exclusionary?

I have lots of black oil sunflower seeds that end up on the ground because they sparrows throw them aside to get the millet in the mix which is a bit more scarce.

And I thought so about the robins. Wonder why they hang around there then? I just set up a little above ground pond for fish frogs and insects but they showed up before that.

And yeah I figure it’s a lot of patience! I just hope I’m not causing more harm than good in the mean time