You don't wanna see
your little BIRD leave the nest.
The Big Bang Theory Season 2, Episode 19
Hey, look at that pretty BIRD.
The Big Bang Theory Season 8, Episode 18
- There it is.
- The BIRD?
The Big Bang Theory Season 5, Episode 17
MRS. WOLOWITZ:
Little BIRD? You're almost 30!
The Big Bang Theory Season 2, Episode 19
Only BIRD I ever loved.
The Big Bang Theory Season 4, Episode 19