4 out of 14—worse than I'd hoped, better than I'd feared.
They behave almost exactly like chicken chicks with a mama hen—stick close, climb up under her wings, eat whatever she tidbits, and cry when they lose sight of her. She is exhibiting sounds and behavior I've never seen before, sprinting after lost chicks, tidbitting, and inviting the chicks to shelter in under her wings. It's very dear—I just hope I won't have to kill more than a couple of them, as I do not intend to keep any males.
Now that they've had a day to toughen up, they are always on the move. She abandoned the nest last night (thus the sad cold eggies) and took her babies on the road. She's been a very good mama to the ones who arrived. It's been so fun letting her have something natural in an otherwise unnatural environment—I can't wait to see how this experiment turns out.
The aviary is partitioned, so the other hens are in the roofed section until the babies are old enough to stand up to pecking. Peaceful in both sides, all things considered. But Raven, another 3-year-old hen, is currently sitting 12 infertile eggs and making quite a fuss at anyone who comes near...
I don't know if my heart can take a back-to-back disaster hatch, but I can't deny I'm sorely tempted.