Weeg
Enabler
I think that is much better than nothing. What about shade cloth? Could you get some of that and cover the area with it?Even if it at least keeps the sparrows out? Poop would still fall through but at least they wouldn't be directly coming in contact with the birds? I was looking at this one.
https://www.amazon.com/DGCUS-Netting-Poultry-Protect-Plants/dp/B09MW1TCD2/ref=mp_s_a_1_3?crid=1DWY53M31CL4W&keywords=50x50+fine+mesh+netting&qid=1648060710&sprefix=50x50+fine+mesh+netting,aps,106&sr=8-3&th=1&psc=1