Esther perked up for grapes, BIG time. She started walking around the room.
So I decided to take her outside for fresh air, and see how she reacted. The other hens and Silas came over to check out the crate. I threw some feed down, and Esther came out. The Dominiques reestablished their pecking order, Esther retreated to Silas' side, who did his little wing dance

but the hens left her alone. I threw down some BOSS and crushed egg shells, and they all started scratching and feeding, including Esther. The Dominiques pecked at her, she moved away. But she looked very happy to be with them.
Drinking!
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One thing I noticed about Esther outside that I hadn't inside is that she appears to be straining. She is eliminating, not constipated. I didn't feel an egg previously, but I think I will bring her back in at dusk, check her vent again, and possibly give her an epsom salt bath soak.