Peppers most likely evolved capsaicin as a deterrant to mammals. They want their fruits to be eaten by birds, so that the seeds will be carried away and spread - mammals tend to chew the seeds in fruits. So, the answer is, birds eat and love peppers. read more
Parrots and other parrot-like birds eat hot peppers and do not appear to even notice. Even my canary enjoys eating the pepper seeds I scrape out of sweet peppers. One day I caught him eating the crumbs and flakes that were left at the top of our table-top chill pepper grinder. read more