It's Saturday May 15 and it's Day 5 of the hatch. We know from our ChickQuest book that we should start seeing some signs of life in the eggs if they are fertile.
We decide to candle a few of the eggs. Candling eggs allows you to keep track of the progress of your egg incubation. First we wash our hands, then we take an egg into a dark room. Then we shine a bright LED flashlight at one end of the egg. This allows us to see into the egg.
Yay! #4 white egg shows a beautiful spider pattern of veins that tells us the embryo is growing!
Here's a great site that has lots of info about candling eggs: 4-H Embryology
Got to next day (Day 6) here.