Read the dictionary definition of bird. All definitions for this word.
1. warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings
2. badminton equipment consisting of a ball of cork or rubber with a crown of feathers
3. a cry or noise made to express displeasure or contempt
4. the flesh of a bird or fowl (wild or domestic) used as food
5. informal terms for a (young) woman
6. watch and study birds in their natural habitat