Thank you! Yes chicken eggs. We do have one mystery egg in bator that the kids found. It did not float so we thought we would try to hatch it. Believe it's a mallard egg though. It is a wax like egg.
So glad I've stumbled upon this thread. We had a mishap with two eggs around day 13. The membrane was still in tack so we melted wax on them. Now we are almost day 23. Should we remove wax to allow for them to hatch. The eggs had movement up until lockdown. Cannot tell now if there is any or not.