Thanks to everyone for your advice & support while I've been caring for this little one.
Good News, for the last couple of days I've been putting her into the shed at the side of the pond during the day (door is open with a cage across so she can't get out but can still see & hear the others) with a buddy duck. I changed the buddy over a couple of times through the day so that each duck can spend time with her and she's not a stranger to them. I've then put her into the pen with the rest at night when I feed them so they're distracted by the food and don't realise there's a extra duck back with them. She's eaten the food from the dishes with them but then as the others have dug around searching for more food she seems to have gone and stood away from them looking a little unsure of what to do!!
The weather here today has been very windy so I've kept them all in the larger pen together all day (they won't go onto the water when its wild anyway)
Kept checking on them throughout the day and I haven't seen them picking on her at any point and tonight when I fed them they all grouped around the dishes together and she wasn't pushed out or anything. I couple of the other ducks keep having little squabbles amongst themselves and if she's near them and gets knocked she wobbles and falls easily still.
Just a little concerned that she keeps going and standing alone in the corner & worried if I let her out on the pond then she won't follow the others. When she was in the shed she seemed to stay close to which ever duck was in there with her and now she seems a little confused as to how to act with the full group.
Will this come back with the more time she spends with them all??
Should I keep her off the pond until she does seem to be bonding better with the others?
Miss Lydia, I've still fingers crossed at the moment and hoping not to have to cross that bridge that she'll never 100%
recover - I don't think my other half is keen on the idea of a house duck as a pet
On another note I now have squatter ducks on my pond - these appear late at night and enjoy a good sing song right outside my bedroom window around 3am, then have their morning splash around at 6am before flying off and disappearing again for the day