Bird pepper (also bird's eye pepper) is a common name for several small-fruited chili peppers of the genus Capsicum whose pungent fruit is eaten and dispersed by wild birds. Birds do not sense the burn of capsaicin and pass the seeds unharmed, so bird-dispersed chilies tend to be small, red and borne within reach of birds. Because the name describes this habit rather than a single species, it has been applied to several different wild and semi-domesticated peppers:
In the Americas the name usually refers to the wild Capsicum annuum var. glabriusculum, whereas in the Old World "bird's eye" is applied to cultivated Asian and African chilies of both C. annuum and C. frutescens.