Looking for a Fanfic: MCU Tony Stark adopts baby winged mutant

Hello fellow fanfic enthusiasts, I need your help to find a specific fic.

This is what I can remember, it is an old fic.

Tony Stark goes to an orphanage and discovers a baby boy alone in a room, swaddled too tight. He is a mutant with bird wings and the orphanage was hiding him. Tony takes him home and adopts him.

The baby IS NOT Petter Parker, and this story might be the origin of the Irondad trope?

This is an early MCU fanfic, pre-Captain America Winter Soldier, possibly pre-Ironman 3. I think it was on Fanfiction.net originally, but I'm not sure.

Thank you to anyone who can help me find this story, I remember it being really sweet.