Is this a good thing?

[Lacrymosa]

I've hatched eggs before, but never candled them until I set this batch.
All of the nine Ameraucana eggs in there seem to have a dark circle on the yolk, with a tiny black circle on that. Does this mean they are developing? What should I look for next time I candle?

 

[kathyinmo]

Look here, and see what you should be seeing ...

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