This is our ducks’ first winter/spring. The weather has been hot and cold for a few weeks and one of our ducks (none have ever laid eggs before) has been laying eggs haphazardly. I’ve only found two because one was underwater in our creek (It’s where they like to hang out) and one was in the middle of our yard. I would have left them alone if not for the haphazard placing, one was a tiny bit cracked, and the ducks wanted nothing to do with them (even going out of their way to avoid them like the plague). I put a bit of candle wax over the cracked part of egg 1 because nail polish just wasn’t cutting it this time, but after some liquid leaked out, there was a rather large bubble in the egg. The egg from the creek (egg 2) had a smell but it’s gone away after a little incubation and is very heavy. They both sink in water, but now 3 days after finding egg 1, I can no longer see the bubble and there seems to be something moving inside when I turn it. Egg 2 is the same after day 2, no smell. I’ve been incubating them at about 95-ish degrees and they’re both warm to the touch. The trouble is that I can’t properly determine a fertile egg by candling, so any help in this situation would be much appreciated.