The Two Wings
Scholars have said that if one dreams of having two wings, it may indicate that they will have two sons. As for seeing the upper arm (deltoid region), it may symbolize a brother in interpretation.
Per Ibn Sirin's Muntakhab al-Kalam fi Tafsir al-Ahlam
Note: These are traditional scholarly interpretations (ijtihad) drawn from a specific classical source — not a binding religious ruling, fortune-telling, or a prediction of the future.