Welp, we have 3 broody girls now!  My bantam brahma/bantam cochin cross has been sitting about 9 days now on a clutch of 6.  Another 18 silkie eggs are divided between my American game/EE cross, Olga, and one of my two pure blue/wheaten ameraucana hens, Doris.  Olga and Doris also each have one egg of their own that they're sitting on, and they both went broody on the same day. 
 
My Olga goes broody every time the wind blows.  Must be the American game in her.  She's a good mama, though, and this is her 5th or 6th hatch in a year.  Last time, we only let her hatch out one chick (well, we gave her 4 eggs, but we weren't sure on the fertility of those eggs & only one of them even developed). 
 
It's going to be interesting to see if I have a better hatch rate on shipped eggs using a broody than I ever had in the incubator.