The situation is that this duck is one of the many many ducks dumped at a local lake. Vickers wants to rescue her and perhaps another female for company, in order to treat her wounds and give her a break.this definitely looks like bareback to me. how many drakes and hens do you have? i recommend at least 3 girls for every one drake, and anything less results in these types of injuries. definitely clean it (i use vetericyn when my birds get hurt). once the dirt is out treat it with triple antibiotics or neosporin to prevent infection. keep her isolated, but maybe put the pen close to the other ducks so she is not lonely. make sure that they cant fit their heads through the bars though, or else it wont heal.
increase protein while her feathers are growing, and she'll be fine in a few weeks.