Your Pixie sounds like my Cookie. The only problem with a bantam broody + LF chicks is trying to keep them warm as they grow. Since it's summer here, I don't worry at all. By 4 weeks, they're mostly feathered, so if it's a colder season, they'll just use a nest box to cuddle inside at night.Cookie Monster - that's so cute! I've just put 6 newly hatched LF Orpington chicks under my broody Old English Game Bantam tonight and she took to them like a duck to water. She was immediately clucking and purring to them and organising them so everyone was comfortable and safe. I've only raised bantams before so I was wondering how she was going to get on as they grow, so it was great to hear that your Sebright is doing a great job with her big babies (you soothed a few worries for me). I suspect this is going to become a regular thing as my Pixie hatched eggs mid March, looked after the babies for 5 weeks, was laying again by 6 weeks, then she laid for a month before going broody again. She wasn't giving up and she was being such a pain in the main coop that I had to move her out. It's nice to indulge her and who doesn't love cute little chicks running around.
Cookie can handle 7 large eggs. I've tried setting 10, 8, 8, 7, & 6. Every single time, exactly 7 chicks hatched. I guess 7 is her lucky number. (The time I set 6, she stole an egg & completely surprised me!)
Trouble (Sebright) doesn't have the Orpington "fluff". I gave her 2 eggs, but only one was fertile. My DD had an incubation experiment going, so I added some of her chicks to avoid a lonely only situation.
Here's Trouble tonight sleeping with her 3 chicks(4wks old. The black orp chick is actually 4 days younger.) She had 4, but 2 are male, so one boy was rehomed a few days ago.