race features:
Talons- your talons are natural weapons, which you can make unarmed attacks with. On a hit, you deal 1d4+ STR slashing.
Avian Heritage- due to your origins, you can replace your natural weapons with a trait reflecting your ancestry. A bluebird Aarakocra has an enchanting song, while those of vultures work best in groups. A sect of the celestials put part of their own divine blessing into their creations, Aasimar are an option for avian heritage. you sacrifice your flying speed and talons to gain one of the types of Aasimar subtypes.
If you choose the Avian Heritage, then you also gain Darkvision out to 60ft.
your feature are Avian in nature, but the extent of that is up to you as the character. you will always have wings. perhaps as an Aasimar descendant, you look primarily close to human barring Avian eyes, wings, and subtly divine features.