Anyone have a copy of Holderread? I can't find mine at the moment.
The children were reading it and carried it off somewhere and...
Anyway, he lists breeds with data such as number of eggs per year, foraging ability, etc. And the list includes mothering ability. But since I don't have my book where I can find it... I can't help!! Sorry!
But if you can get your hands on a copy or if someone else has it handy, that should have the data you need.
I've had rouens that went broody, and made excellent mothers too. I've also known a couple of pekins that stayed on a nest to term. I know these breeds dont normally go broody, but my point is that you just never really know until they actually do it.
Also never heard of a muscovy that wouldn't go broody.