So next year we want one of our mutts to have chicks but I wonder if she will sit on them or not. Does it depend on weather? It's either in spring or summer that we will let her, so which one is better? Also she is a brahmaXRIR, are both of those breeds good broodies? Should we just wait and see if she will sit on them or should we just get an incubator..... Which reminds me, are incubators expensive?