I have 5 hens (1 Australorp, 2 RIR and 2 RIW) and 1 Australorp roo, they are about 2 yrs old but none of the hens will sit for me. I wanted to some chicks but not one of the hens will sit on the eggs. Anyone know why? I have 2 RIR that looks like the roo is mounting them than the other 3. The Australorp hen doesn't look like the roo touches her and wherever she goes he usually follows, I've also noticed she is kind of bossy with the other 4 ladies, is this normal for her to act that way and for the roo to keep picking on my 2 RIR?