Birds are often used as metaphor for feeling free -- flying above whatever it is that might be holding you down. That's one of the reasons artists play on birds -- doves, vultures, bird songs or just the word "bird" generically -- as a symbol in a song. Not always is this symbolism positive.
For example, Nelly Furtado's most known hit "I'm Like A Bird" describes herself as a bird flying away without a clue where her soul or home is. John Mayer sings in "Vulture" of other people picking him apart. And then you have someone like Anderson .Paak rapping "a bird with the word came to me," playing off of The Trashmen's "bird is the word" line from "Surfin' Bird" in 1963.
Here is a list of 20 songs around birds.
See also: How to Download Free Music | Top 25 Songs for Studying | 15 Songs About Family | 15 Songs About Saying Goodbye | 15 Songs About Fighting