Silkies are amazing broodies. All mine are gone now however I still have too many broodies in season here. I’ve yet to try the frozen water bottle to get them stop but I think I will this coming year.
out here we use wire dog crates suspended so the air goes under them breaks them real fast
My most relentless broody (Silver penciled rock) will continue to sit on an ice pack until it is as hot as she is. It doesn't matter if you change it out for another one or not. The suspended cage takes at least 2 weeks to break her and she usualy is only broken for a few days to a week before she sits again. When she wants babies, she's serious lol. She's actualy been spending some extra time in the nest box lately when she goes in to lay her egg and has been growling and print up when I catch her. It's a whole 9° out at the moment but I have a feeling she'll be sitting again soon :/