hen sitting on 19eggs and that seems to be an overabundance for her to handle. but she covers them well. should I add another nest box have 2 already but the other one has 7 eggs from another hen. both are really good moms from hatching only once before but only 4 not this many should i set up another nest box for another hen to help I dont think she would like that. what to do.. can she handle so many.