We just adopted a 5 month old duck who does not seem healthy, but we aren’t sure what is wrong. She has eye discharge, barely moves, can’t fully stand up while walking - which causes her tail to drag - and shows no interest in eating or drinking unless we pour water into her beak. Previously she was being attacked by the males in her flock (she was the only female). Was this caused by an infection or possibly stress from her previous living conditions? And how can we help make her healthy again?