Regardless of the number of times I have hatched chicks, the process of embryo development fascinates me equally each time. That a chicken egg can evolve from common recipe ingredient into a living, breathing, fluffy-butt in a mere 21 days fits my definition of miraculous.The following photo presentation pairs well-known images from the Purdue Research Institute, depicting embryo development from the inside, with my own photos of candled eggs throughout the 21 chicken egg incubation period. 
I invite you to view any one of my YouTube videos to witness the wonder of hatch day. Baby Chick Hatching in Home Incubator, Singing and Dancing Easter Egger, Hatch Day! Ameraucana Chick Arrives! and Hatching Easter Egger.
Egg candling was done using the Brinsea OvaScope egg candler.
To see day 15 candling video click here
Sources for the narrative information included on these images:
http://chickscope.beckman.uiuc.edu/resources/egg_to_chick/development.html
Kathy Shea Mormino
Affectionately known internationally as The Chicken Chick®, Kathy Shea Mormino shares a fun-loving, informative style to raising backyard chickens. …Read on
shop my SPONSORS
Regardless of the number of times I have hatched chicks, the process of embryo development fascinates me equally each time. That a chicken egg can evolve from common recipe ingredient into a living, breathing, fluffy-butt in a mere 21 days fits my definition of miraculous.The following photo presentation pairs well-known images from the Purdue Research Institute, depicting embryo development from the inside, with my own photos of candled eggs throughout the 21 chicken egg incubation period.
I invite you to view any one of my YouTube videos to witness the wonder of hatch day. Baby Chick Hatching in Home Incubator, Singing and Dancing Easter Egger, Hatch Day! Ameraucana Chick Arrives! and Hatching Easter Egger.
Egg candling was done using the Brinsea OvaScope egg candler.
To see day 15 candling video click here
Sources for the narrative information included on these images:
http://chickscope.beckman.uiuc.edu/resources/egg_to_chick/development.html
Thank you. Nice to have you here!
Just found your site and love it. I didn't find your pics graphic, but beautiful! The beauty of nature…
Thank you. I'll just hope for the best, and hopefully at least one will hatch tomorrow (or even late would be fine haha). I'll def invest in that book. Thanks again.
Hello, first I love your site, it has been my go-to site! Since you are also obsessed with candling your eggs I was hoping you might be able to help me since I am pretty obsessed with candling as well. I am hatching 3 eggs for the first time (only 3 fertile out of 9) I candled my eggs the 20th, 5 days before they are due to hatch, and 2 of them had all of the darkness (which on the 17th and 19th it had taken over the majority of the egg) had shrunk and collected at the small… Read more »
I would wait another day or so in case you miscalculated. I would also candle the eggs to see if there is any movement inside.