My Zorro's wings are hurt, can you help?

[Maddiesmom]

My pekin/mallard mix female (Zorro - she was named before I found out she was a girl!) has lost her feathers on the edge/tips of her wings. Everywhere else is fine. SHe's one and a half years old. I know it's not molting, but I don't know what it is. I remember reading something about this illness, but can't find the information again. Can anyone help and tell me what I need to do?
Thanks!

 

[chickensioux]

I searched around too and can't find anything that matches that particular symptom. Do you have a male around? Maybe someone else will know. Good luck.

 

[Amiga]

Have you looked for mites or lice?

 

[Maddiesmom]

I do have two males around. Also I haven't checked for mites or lice, but I will. I'm not sure if that is what the problem is. I seem to recall it being something else, but I could be wrong. I'll check for that and continue questioning.
Thanks for your help.