Developing duck egg with two air pockets????

[Mrcat7290]

So, I was candling my duck eggs yesterday and saw two of had to air pocket type things, is this normal?

 

[KaseySnow]

Picture?

 

[theycallmechickmagnet]

mine did that and stopped developing after a week. good luck

 

[Mrcat7290]

Sorry I spaced posting but both egg have continued to develop and have little feet now!