What a precious baby, When we mix breeds it's always amazing what will come out and they always make sure pretty ducklings and ducks. I hope you will continue to post pics and let us know how they are doing, and if mama finishes her job of hatching and rearing.
Congrats!!
They sure are precious. I hope it works out to put the one hatching one back hopefully you'll know what her intentions are before you have to leave for work.
Keep an eye on the membrane it doesn't dry out.
Did she finally return to her nest? if she did and sticks to it you could always place this one back under her tomorrow if you think she'll stay with it.
Sounds like the pipped one still has a way to go if yawning and chewing. I don't have a bator either I let my Muscovy do all the work. Be careful you don't over heat the egg with the hot water bottles.
As long as they don't smell you did right by leaving them. if a week from hatching they pretty much fill up the whole egg. The ones you are sure are alive did you get a pic for comparison?
That's a good idea to candle again in a few days then toss the ones that have quit. those last 3 pics don't look right if they are all same age. I don't see any veins like in the first pics.
:welcome
Some good candling pictures would be a good idea. Being the eggs were sitting in water bacteria may have gotten through but having the bloom still intact hopefully not so get some good pictures.
the dark blob in the center of the egg is probably the duckling forming but pictures...