Brownie is a FBCM and Flour, Sugar, and Powder all have quite a bit of Marans in them. So 4/10 plenty enough to make my life interesting

to say the least. I could deal with Broody if they could just lay eggs and brood in a reasonable location, like oh idk one of the 4 nest boxes!!
Last summer three of my silkies went broody every other month... Marty decided she didn't want to be broody. Until August! Then she brooded for about 35 days, and quit! She hasn't been broody since.
But the most interesting part was the fact that Buttercup, Misty, Whiskers and Dorothy all went broody! My barnyard mutts were just as hard core broody as my silkies!
Now Buttercup, Misty and Whiskers are all hatch mates, from the year before, and they all stayed broody for about a month, in fact Misty and Whiskers brooded together in the same nest. I would drag their fluffy butts out of the nest boxes a couple times a day to eat, drink, poop and fluff in the dirt, then they would run back to the nests.
Dorothy though is Queen Penelope's daughter and was born last October from the clutch of 4 eggs I set under Henny Penny; Penelope has never in all her almost 7 years shown the slightest interest in being broody! So it was a surprise to have Dorothy go broody, she wasn't even a year old! And boy can that girl sit tight! 6 weeks she stayed broody. I would haul her butt off the nest a few times a day, some days 4 or 5 times a day, she would eat, drink, poop and run back to her 'nest'.... Finally she gave up one day!
Then she went through the most horrendous molt! Poor girl, likely scarred her for life and she will never be broody again (here is hoping at least!).
So every one of my youngsters except Rose went broody last year! Only the 3 older ladies (Penelope, Blanche, and Sophia) along with Rose (Blanche's daughter) didn't go broody! Likely have that bunch this year haha!