This is my first time with duck eggs and it seems like all of the eggs that have pipped have move a little and pipped again. Do duckling normally do this? It doesn't really seem like zipping yet.
I wasn't really worried about it. Just curious. I've hatched maybe 4 or 5 batches of guinea and chicken eggs and hadn't really seen this. It seems like they would pip once, rest, then the next "pip" would be when they started zipping. Just wasn't sure if ducklings had a quirk...