Old time cockers call that "cutting a wing". Most folks on this site refer to it as the roo dance. He`s asserting himself to her. Very normal. What isn`t normal is you putting her out of her nest to make sure she eats and drinks. She will do that when she thinks it`s time, without any outside help. During her broody period, she needs privacy and solitude. She should be away from any other chickens and left alone to do her job. Don`t worry about her. Food and water and solitude, with a nest at ground level so she can safely take the chicks in and out of the nest, is it. Also, not a good idea to disturb her during the hatching process. A day or 2 after they hatch, she will bring them out to show you. Then you can enjoy them. Have fun.....Pop