I think she'd do better with other ducks for sure, especially if she's already a little stressed. If you do put her with your other ducks I would introduce her to the flock under supervision to make sure they don't pick on her ( ducks can be bullies sometimes). you can clip her flight wings so...
Hi I found your post about your mandari n (that is so sad). They say mandarin more so than other ducks get very stressed from traveling. You can actually give them Gatorade upon arrival of they seem to be acting abnormal... I'm sure you can look up how much to give based on weight/size. There...