Open beak panting wings held out from her body if she looks stressed.
Anyone else wanna jump in here ! Have I missed anything?
That's about it unless it goes further. They can just drop. It is hot here in Bris too. If I feel hot I put the sprinkler on for the girls under the mango tree where they are. Some get under it - some don't. They all lay and roll in the wet soil it leaves.
If she's not use to it - it may knock her harder until she gets used to it.
Last saturday in the 41c heat I dunked a clucky. Too hot to lock her up and she was panting on the nest. I always say don't dunk to break a clucky but she was stressed. She complained the first time but she actually relaxed as I swished her up and down to get the water to her skin. She didn't complain the second time. PS she stayed clucky.