I've given chicks to broodies who've only BEEN broody for 4-5 days, so I say go for it. none of my reliable girls has been broody for more than a week on average. tho I do have a couple who were determined to hatch wooden eggs for upwards of a month or more, but they're also girls who weren't reliable in the past...
then again, I hatch everything myself and determine who gets babies or not.
X2! Good luck!
Thanks both. Going to try it tonight. Just found another broody now. Time to hatch some more mottled! Hope it's the last one, running out of eggs!