I wondered that - well after I'd walked away, of course - because it did not fly away, even as I crunched around in the dry undergrowth, following its movements. I did see it stop - I thought to eat, but then it still carried food, so maybe just settling the food? Maybe I should adapt the CNM sighting with 'nesting'?
It seems to have a fair bit in its beak, and if it was for itself I'd expect it to eat it straight up. I think it may be appropriate to suggest this as a breeding event. It is apparently a ground-nester.
All encounters I have had with adults of this species are in pairs or small groups and typically they fly a short distance when disturbed. They have bred at our place but only saw the young ones, not the nest.