Ended up with a Rooster out of some baby chicks, decided to keep him. Never had a Rooster before so this is All new to me…he has been mounting the girls…he’s about 6 mos.old so we’re not even sure if he is ready yet. Well, one of the hens is setting on some eggs but DOES NOT LEAVE that nest. Tried to give her some food/water … she’s not interested. Do they remain on the eggs continuously?