Hey /out/

I recently learned more about invasive birds such as the European Starling and the English House Sparrow, and i want to try and eradicate them from my birdfeeders. I was thinking about doing so with my pneumatic guns. I have daisy red ryder / daisy buck bb guns. I can get about 4 yards away before accuracy is a problem, so i want to know if its powerful enough to kill them quickly, instantly if possible.
If not, i have a crosman 760 pumpmaster that i can use pellets with, and its more accurate than the daisys. as a last resort, i can use my spring air rifle i got from cabelas about 7 years ago, but its really loud compared to my pumpmaster, so i dont know if i want to use it.

Concerning sparrows, which variants can be confused with the English shitface so i dont kill the wrong birds?