This is my first post here...I have been reading this forum a lot lately.
I started hatching 12 shipped quail eggs 24 days ago...I had 3 chicks that came out on day 17, 18, and 19. I saw some movement afterwards...but till now nothing came out except those 3 chicks.
I am wondering if I somehow killed them. Well I did drop one of them while candling on day 7, so I know how that one went

. Maybe I entered lockdown too early (14th day, counting from the starting day as 0)? Maybe it's because the humidity was too low (35%-45%) during incubation (many of the eggs had hairline cracks...so I guess they lose more moisture than normal)? Maybe the humidity was too high after the first chick came out (70% before, 99% after)? The temperature seems to have dropped from 37.5 C from 36-37 C after I lockdown (due to removal of the egg turning plate resulted in more space). The room has no wind and was kept at 24 C constantly with floor heating.
Though one thing I noticed is that, before the chick is dry in the incubator, each of them kicked all of the other eggs around quite brutally...maybe that is the problem?
As for the chicks that did come out...one of them has a wry neck...but it's eating, drinking, and sleeping fine. They are pretty active and already have some large feathers after 1 week! At first the first chick was really attached to me...but as it gained more friends, they all started running away from me. I got them to eat off of my hands when they are hungry in the morning.
...but they typically just scream and hide when they see me...I guess they just don't like me...I have limited equipment so it is difficult to approach them at eye level...
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update on the same day:
OK I gave up on the last 8 eggs (out of 12).
I cracked them open. It turns out that only 3 had some development. 1 of them was definitely going to make it if I hadn't dropped it on day 7. But the other 5 had no development at all! I also tossed out a stinky one that "exploded" (more like cracked) much earlier. So that is about 6 eggs out of 12 there weren't viable in the first place. So I guess I did OK...hatching 3 out of the 6 viable ones (could have be 4 if I was more careful - maybe that is why they don't like me?).