*CHICKS are HERE!!!* Egg Candling Pics: Progression Though Incubation - Page 3

I love watching them move too!

I swear the little guys are like: "HEY!!! It's cold out here! Stop moving me!"

I wish the shells were clear sometimes. :p

Depends on your light source. These are brown eggs that I'm candling with a high output flashlight.

http://www.eagletac.com/flashlights/t10lc2.html

In the past I used a surefire 6p which also works really well and can be bought at Lowe's.

http://www.surefire.com/6P-Original

Others use a projector or some other type of directed light source. With a simple maglight or some wide beam source, it might be harder to see though the eggs. Unless you have a bright directed light and light colored or white eggs, you often won't see as much, thus my recommendation that new hatchers don't toss eggs till day 13-14 or so.

That said, white eggs are MUCH easier to candle:
(Taken with the same camera, but using the surfire6p on day 12 or so of a white egg)

It's often hard to find good sequential pics of egg candling so that's why I decided to make a thread out of this batch of chicks. It's going to be updated as the eggs incubate. Since you are teaching a class, might want to take a peek at the paper "A series of normal stages in the development of the chick embryo" by Hambuger and Hamilton from 1951. It's really old, but is really detailed on the process of development.

http://www3.interscience.wiley.com/journal/109916673/abstract

Best of luck to your class project! I've always had issues with classroom hatches due to temp fluctuation on weekends and classroom bators not keeping up.

Update!

There are 6 eggs developing nice and strong and it's day 11! Videos are posted for day 6 and 11.