I see this sometimes and I think it can be explained as just a bit stiff after a long spell sitting. The next two quotes encourage me to think that's what was going on with Fret
Yay!


Talking of which, any news on your move to a new place closer to the allotments?
Some are. Eve has been sitting on 2 golf balls, 1 plastic white egg, and 1 rubber brown one, on no nesting material at all (!) since 28 July. I was trying to break her before this as Janeka was already sitting, and stopped chasing her off for fear she would interfere with Janeka and wreck that clutch. I feel really sorry for her now, as she has been pretty diligent with the fakes, carefully gathering them under her when she comes back from her daily ablutions, while they roll around freely on the smooth plastic bottom of the box. If this can be explained by something other than her thinking they're real eggs, I'm listening...
On the ground or with wood maybe, but perhaps harder with plastic coops? An egg got broken in Janeka's clutch towards the end of the first week, and I didn't see any ants, including when I cleaned it all out after she'd taken the chicks off for foraging 101.