Handled my ewe lambs today as was dosing with flukicide. All seemed fit and well, good condition. Anyway, when I ran them back to their field afterwards I noticed one had a drooping ear. Any ideas what the cause is, and should I consult a vet? Quick search suggests listeriosis, tapeworm or ear infection. Shouldn't be the first one as we've not been feeding them anything yet, just grass. Any suggestions, has anyone seen this? Thanks