We learn in this episode that Sheldon is deathly afraid of birds although for once he's able to overcome his fears.
The title refers to the defusing of Sheldon's fear of birds.
Penny: What are you and professor fussy face up to tonight?
Leonard: Star Wars on BluRay.
Penny: You've seen that movie like a thousand times?
Leonard: Not on BluRay.
Bernadette: (letting the bird hop onto her arm) Ohh, he's a sweetie!
Sheldon: Yes, very sweet. Now, slowly and carefully, flush him down the toilet!
Amy: (after Sheldon befriends the bluejay) I guess you have to have hollow bones to get some sugar around here.