I know I started late with my AGs last year and did not do well at all. Especially when it comes to my broody hens. I tried using hens to raise some chicks in april and may. They hatched about 30 chicks out of 60 eggs and only four of those survived to adulthood. Half of the hens I used to hatch and raise the chicks have died since then. They were older hens and I think the stress of incubating eggs in the heat just wore them out. It is just too dang hot here in Texas in the summer, and with this horrible drought even the wild animals cannot make it.
On the other hand, those Welp chicks I have been raising over the winter are doing just wonderful.