Too busy murdering.

For the same reason cows moo but a moose don’t cow.

Roosters don’t crow, they cock-a-doodle-doo. Thanks for coming to my TED Talk.

Crows can’t crow. 🤯

“Rooster” is a word Puritan assholes made up so they didn’t have to say “cock” and thereby admit the sexual nature of humanity. By which they, ironically, admitted the sexual nature of humanity.