Hello fellow hatchers! I would love some advice here. I have 8 duck eggs in my Hova-Bator and today is day 30 (counting the half day we put them in in the afternoon). They all seem healthy and alive. They are moving, rocking, and jerking around. My concern is that there are no noises coming from the eggs, which leads me to think that they haven't internally pipped yet. Do they always chirp after they pip internally? I filled all of my troughs (4 of them) for lockdown 5 days ago. I refreshed the water again yesterday. They have all seemed well, as I said, they are moving around a lot, but shouldn't I be seeing more signs of hatching by now? This is my first time hatching anything, so I know the options for mistakes are many--but if there is still time to help them (seeing that they are all still moving and alive) I would love any advice I can get! Thank you!