I'm using retextured snowballs and eggs for the different paintballs for two teams in a paintball map, so I can't replace the eggs with snowballs.
I have tried using
/gamerule doMobSpawning false, but that still allows the chickens to spawn. I have also tried using
/tp @e[type=Chicken] 0 0 0 on a repeating command block to quietly remove the chicken, but there's still a very noticeable frame where the chicken is visible.
/effect @e[type=Chicken] minecraft:invisibility 10 1 false isn't fast enough, either.
I'm not using any plugins or mods.
tl;dr Without snowballs, how can I stop chickens from appearing for even a single frame.