Lost an egg. :( I'd been wondering about it for a few days -- the chick never moved, didn't seem to take up as much space as the others, and the veins had started fading. Last night I candled it again and there were no veins but a new large dark spot. I debated leaving it or pulling it for about 10 minutes and finally just decided to risk it. Did an "eggtopsy" to check and there were no veins at all ... the new dark spot was all blood but there were no veins going to little chick or anywhere in the yolk.
The yolk was also crazy watery -- is that a normal part of the incubation or another indication of something being wrong?
Something was wrong with the egg, or embryo MHO. Sometimes we just do not know what causes an egg to quit. Health of the hen and rooster, ages of both and so many other things can contribute.
After hatching so many I still wonder, why? But resign myself to if the chick is meant to thrive it will.