They make no sound because they do not exist.
No. Purple cows do not exist.
No they do not.
Yes, because in my world cows have 2 legs, are purple and eat skittles and gumdrops.
No they are white.
no
Riders of the Purple Cows - 1924 was released on: USA: 19 October 1924
Purple. The answer is always purple.
Of course not! Are you crazy!
Cows are purple
yes it can be any color in the rainbow!
Most, if not all cows don't make any sound at all when giving milk. They just stand quietly munching away at hay as they are being milked, or just stand quietly as their calf suckles away.
They traded with the purple cows and the native americans