One of my asil hens laid and set a clutch of eggs one December... the middle of winter. I was going to toss the eggs, but decided it didn't hurt leaving them in there and tossing them out as they froze. Well she hatched out 5 chicks for Christmas and raised them all to adulthood. Excellent mothers is an understatement. Have had hens that set and raised 3 clutches of chicks over the summer... nothing funnier then seeing an asil momma try to cover a half grown Thai chick on the roost :) . Great personalities, and while they do take some extra care, the rewards far outweigh the extra work required to raise them.
Are those birds Hyderabads?