Mallard duck baby, we have 4 we're raising, one is sick. He's only as big as my hand, maybe 2 wks old, and started shivering all the time, picking at his back like there's a sore, but we didnt find any. Is pet amoxicillin safe? Anything else we can do? I tried mixing just a tiny bit of powder from a pill into some food and get him to eat it, but not much luck. He did eat some, but I have no idea if he got any medicine; he was too freaked out... Less skittish than usual b/c he's sick. Oh dear... just heard from my husband again, he was told that is a symptom of a birth defect where the spinal chord and brain don't develop properly and leads to paralysis. So he/she might not make it Very sad.