Can Alter Self spell make me into creature with wings and gain flight?

@JeremyECrawford Can Alter Self spell make me into creature with wings and gain flight ie Aarakocra

— Carmine (@nirvanstryder) May 10, 2016

The alter self spell describes the transformations that it makes possible. Wings aren't among them. #DnD https://t.co/kbWFpqZ9zr

— Jeremy Crawford (@JeremyECrawford) May 18, 2016