All the chicks hatched, and two feed store chicks added to the bunch. They are separated from the rest of the flock by a baby/gate fence with no top. Will this be enough to protect them from the rooster and hens, or do I need to put something over the top to keep the others from jumping in? Edited to say: Sorry, it has been a long day, and I forgot to mention that they were hatched by our hen, Broody. She is with them. Will she be enough to protect them from the others, or do I still need to put a cover over their enclosure?