I'm a new chicken Momma. I have 15 sex-sal-link layers. One of them is broody. I am going to get some fertilized eggs from a friend and I'm wondering what the process from there should be? Should I just mark them and stick them under her with the unfertilized eggs that she's sitting on. I will take the unfertilized ones away. This is all new for me so any info would be great!