I live in the houston area. I'm hoping for my Banny hen to hatch some eggs. She seems to only sit on her eggs at night. Is this normal? It has been very hot this summer. Also her roo also sits on them sometimes. I thought he just mistakenly sat on them ... Till I caught him actually moving the eggs to him and then laying on them. Is any of this normal behavior?? Or do I just need to invest in a incubator.