I'd be a bit concerned not seeing any pips. The early bird could have been in a warm spot therefor causing him to hatch first. I would candle and look for any movement or internal pips. I am a big hands on person, but personally do not advocate for putting holes in eggs unless a chick has internally pipped and been pipped for 24 hours or more. Putting a hole in the air cell of a chick that has not internally pipped will do absolutely no good and as a matter of fact can slow down the transition from internal pip to external pip once it has internally pipped, as it is the build up of CO2 in the egg that prompts them to make the external pip and that build up will be lacking with an artificial pip added to the egg. Unless the chick externally pips and is given at least 18-24 hours AFTER the pip for the egg to chick vascular system to shut down, there isn't a lot you can do without a high probability of jepordizing the chick. Candling however will give you an idea and maybe some stress relief if you can see that there is still life.
Still air is usually ran 101-102 with the temps taken near the top of the eggs, so it's possible that they may just be a slightly bit delayed.
If I were you I'd candle. If there are no blood rings (means they are dead), then you need to create an artificial pip in the air sack.
This is a dead chick with a blood ring-
When you candle, if you see a dark spot like this
This is what you call an internal pip. They may be getting ready to create an external pip, but I'd go ahead and crate an artificial one anyway. Read on.
When candling, take a pencil (You will need assistance or risk dropping the egg) and outline the air sack. Then take a small gentle drill and GENTLY make a hole in the top of the air sack so the chick can breathe. Don't crack the egg!
Example of an artificial pip-
Give it about 48 hours, and if no more progress has been made, take tweezers and chip away at the shell and outer membrane of the air sack. Do not cross the line you made in pencil.
Example-
Make sure your humidity level is up so the chick doesn't get "shrink wrapped" in the dry membrane.
After this, there's really nothing else you can do but wait!
