i have several runner ducks but noticed one hen today standin upright but with her neck sucked in. she seems kinda weak but was fine yesterday. i had her at the local fair with her mate and saw her condition so i brought her home. the stall they were in had a pine shaving floor. my ducks are not used to being on shavings. do you think its possible she ingested some of the shavings? all of the other ducks in the same stall are still doing well. she is a young hen. full sized but not laying yet.