Air Cell Progress?

[Rbl4life]

doesn anyone have a link showing what the air cell should look like during incu. stages?

 

[PunkinPeep]

https://www.backyardchickens.com/forum/viewtopic.php?id=261876

This one isn't concentrating on the air cells, but you can see their progression through the pictures, if that's helpful to you.

 

[Blue Hill Farm]

Post number 8 has some good pics that should help (though keep in mind the dates are labelled wrong- day 14 is actually day 18 on the third egg on top)

https://www.backyardchickens.com/forum/viewtopic.php?id=188436

Good luck!

eta: date explanation

 

[Rbl4life]

thank you both!