"Bird peppers" refers to a type of spicy chili pepper that is often small in size. It is called "bird pepper" because birds are known to eat these peppers and spread their seeds. Full definition
I was curious to know if there were other bird peppers on nearby islands. (fieryfoodscentral.com)
Sometimes I add green curry paste, hot bird pepper & a 1/2 tsp of brown sugar. (tamingofthespoon.com)
As we walked along the hot and humid path, we encountered a Malaysian jungle house with a perennial bird pepper plant growing in front of it, plus mini-plantations of poles entwined with black pepper vines (Piper nigrum) and some nice specimens of Piper betle, the pepper used for its leaf, not its berry. (fieryfoodscentral.com)