Showerthought: most folks count eggs wrong and it hides a real problem
I track mine on a $2 calendar from Dollar Tree and noticed my 6 hens dropped from 5 eggs a day to 3 over about 3 weeks before I saw any other sign. A drop that slow is easy to miss if you just eyeball the nesting box, so has anyone else caught a molt or mite issue early just by writing the numbers down?
My grandpa kept a notebook by the coop door for like 40 years and I used to give him grief about it, called it his chicken diary. Then one spring his numbers started sliding and he caught a worm load before the birds even looked sick. Vet told him most people don't notice until they're losing weight and by then it's a mess. That notebook saved him a whole flock twice. I still think he was a little nuts but the man was not wrong.