Baby chicks and brooding momma

[kimberlygray]

My momma has gotten off her eggs last chick was hatched sat. So I figured she was finished, I threw 2 and they broke open 1 with fully developed chick and ¹ just starting . I put eggs back in her coop what do I do. Did I kill a babys

 

[igorsMistress]

Mama was done, she has hatched chicks to feed. Is the developed chick still alive? 1 just starting what?