I was on pinterest when I came across a pin that linked to this: http://www.wikihow.com/Dye-a-Baby-Chicken 1 Make sure the chick is in it's 11th to 14th day of incubation. It is possible to inject eggs that have been incubated anywhere from 10 to 19 days, but the 11th to 14th period is ideal. Only one injection is necessary if done at this time. 2 Clean off the egg and needles. It is important to sterilize where the egg will be punctured and the hypodermic needle; since this is the needle we will be using to puncture the shell. Use alcohol pads to thoroughly wipe down the egg and needles. Let the egg shell and utensils dry. While drying, make sure the needles to not become contaminated. 3 Puncture the egg shell. With the hypodermic needle, slowly and carefully make a small hole in the shell about one half-inch from the small end of the egg as shown in the figure to the right. 4 Insert the dye. Extract about 1/2 cc., or .5 ml, from the bottle of dye and insert the tip of the needle into the hole and through the shell membranes. Slowly and carefully inject the dye into the egg to prevent overflowing. 5 Seal the hole. Close the hole in the shell with a small drop of melted paraffin, making sure to cover the entirety of the hole and return the egg to incubation. Make sure you can complete the task within a half hour of removing the egg(s) from incubation. Dying an embryo does not alter the chick's health, appetite, or growth. The chick will regain its natural color when it loses its down, or baby feathers. Other birds, such as ducks and geese can also be dyed. Why would anyone do this? What do you think?