My duck ate tiny piece of wallnut's shell

[Naiva80512]

Sounds pretty normal.

Birds with impacted or blocked crop will not usually be eating much if at all.. they do often drink in excess to try and clear the blockage (usually resulting in a water balloon feeling for the crop).. but that doesn't sound like your description.

I wouldn't be too worried.. but I'm always paying attention for any change (in behavior) anyways..

He is fine now...No balloons and he pooped normally...He didn't drink expressively like this morning..I added a little acv to their water to help their digestive system...Tnx a lot for your help