i had one that was broody for about 2 months,i dont have a rooster,i got fed up with her being like that so i got her some brown leghorn eggs,she is a little banty-standard cross,kind of looks like a brown leghorn herself,she sat on 12 eggs and hatched out 9,i was worried she would give up halfway through it all,but she hung in there.her other 2 sisters also went broody all at the same time,they also hatched out some chicks too,1 is already starting to lay again.I think they want to set until they have something to show for it?.Good Luck