I found a chick this morning under a broody hen. It was mostly out, but the egg around it was flattened and broken because the hen stepped on it. The "umbilical cord" like thingy that is below the vent was not clotting up like it should. I took it inside. A yellow yoke like substance with blood veins in started coming out the end, about 1/2 inch long. I put it under a different hen that I trusted after helping it out of the shell. I came back 1/2 hour later and I saw this hen with the yellow stuff on her beak, a mean look in her eye, and a set of lifeless chick legs coming out the front. I was about to pick up the legs and throw them away when they moved. I ran the BR chick inside and it is now under the heat lamp. The yolklike substance is now a full inch long. There is more blood in it. The chick also has a peck right on top of its ear. Evil hen.That has to be the most descriptive title ever.