What do Unfertilized eggs look like?

Answer 1

A fertilized bird egg looks exactly the same as any other egg. There's no way to tell from the outside. Inside the shell, however, it is possible to tell (although if you crack the egg open to see, you can't hatch it). All eggs have what's called a 'blastocyst' on the yolk which is just a tiny white dot. When an egg is fertilized the blastocyst turns into a blastoderm. It houses the fertile cells that will grow into a chick under proper conditions. In an unfertilized egg, the blastocyst (also called the germinal disc) is just a tiny white dot. However, in a fertilized egg, the tiny white dot changes to a larger round spot that often looks like a bullseye.

Answer 2

Not to most people. The germinal disc is a semi-transparent pinhead sized mark on the egg yolk and does not start development until certain conditions are met. Heat and humidity are the signals for the germinal disc to begin forming a chick. When the fertile egg is first laid and cools down all development ceases and does not begin again until the egg is incubated either by the hen or by artificial means.