My 16 month old hen has not laid an egg in 2 days (which hasn’t happened since I’ve been tracking for 3 months) and this morning I found a yolkless rubber egg on the dropping board under her roosting spot (I think!). It’s been very hot, and she seems otherwise healthy-she is free ranging with the others, was taking a dust bath this morning, eating & drinking, poop is normal (for her; she’s had loose stools since day one)-so I’m leaning towards heat stress, but need reassurance! Also, she’s on layer crumble with oyster shell free choice and was wormed about 3 weeks ago. I’ll continue to monitor, but any advice would be greatly appreciated!