I also thought "Racoon!!" the day my »Limpy« earned her/his name: I just had installed the new duckie-pool, went inside to grab my phone and make a funny video when suddenly a big commotion started outside. My ducks were running all over the place, quacking »The sky is falling on our heads, save...
Are you sure about your duck being attacked?
If i were you, i would also try to give her some charcoal, just in case she ate something poisonous. I don't know where you are located, here in WV I am seeing a lot of hairy caterpillars and one of my runners fell sick two weeks ago. The shaking...