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
Hi Kayla. Definitely move her as a predator could get her and the eggs. It's just not safe outside the coop.
This article should help answer most of your questions about caring for her: https://the-chicken-chick.com/2013/08/caring-for-broody-hens-facilitating-egg.html
My husband and I recently bought a farm and got chickens but we know very little about them. They are free range and one went missing for a couple days off and on; she is back now and we found her laying on about a dozen eggs. We just found her & the eggs yesterday and have no idea how long they have been there… we candled one just now and you can see a dark spot and a couple veins going around the back of the egg (maybe day 3 or 4?) But I'm not sure… do I need… Read more »
im a bit concerned its day 21 for my eggs now, no noise, no movement, nothing! what shall i do? )-: These candled pictures are great!
Thank you! This is fascinating! Plus I will sound like a poultry genius when I pass this info on! ;-) (Always giving you proper credit of course)
That is the most amazing thing! Thank you, now I can put my family's fears to rest about cracking an egg and finding an embryo because I now have a rooster.