I have just finished hatch #4 - this is the second batch of shipped eggs vs. the first two from my hens. Hatch 3 had 4 of 15 eggs make it to day 21. All four were peeping like mad on day 20 and 21. two hatched out on their own. The other two were suffocated in the shell the morning of day 22. Perfectly formed. Completely grown...not drowned, suffocated. They never seemed to try to get out. Hatch 4 - last night 10:30 6 peeping/scratching chicks. This morning really early 1 hatched. I get up around 7 am. No action from 3. two still peeping. I poked a hole in the eggs. 3 dead, perfectly formed, completely devloped. 1 Hatched with alot of help. 1 was deformed (no top beak, undersized, still had yolk sac). today was also day 22. Here is the thing I have observed, the egg tooth on all of these chicks seems very very small. My first two chicks were like little rhinos. The chicks that did hatch seemed weak and took far longer to get moving than my own chicks. Also, the chicks that died did not seem to be in proper position to find the air sac. Both sets of eggs came from the same place and I have one more set in the incubator! I am so worried about the last hatch. I feel like, if any of them make it to 21 days that I will have to intervene. Why don't these babies know how to get out of the egg? All the eggs were in a hovabator 1588 with egg turner. I candled at 10 and 15. They were put in the hatcher with temp around 100 and humidity around 65%. There was some fluctuation but not anything major. I realize shipped eggs have a bad time. I just don't understand how these babies can't seem to get out of the shells. Does anyone have any advice?