So, will guineas nest with the chickens? I have 90 acres, so i assume I'll rarely find hidden nests! Also, you think getting two females or two males, to go with my 40+ chickens, would be okay? Not sure I'm ready for ginea babies.... Lastly, would they really help deter night time predators if they are asleep with the chickens? Anything else I need to know when considering getting guineas would be appreciated, please. Thanks!