It certainly looks to have a different attitude.
Laying depends on breed and where you are, some people get eggs in February, i don't expect anything until March, sometimes a bit earlier.
Mine take ages to lay an egg, they can be 'missing' for 2-3 hours, last year I sprayed their backs with stock marker as I caught one on a nest.
When you see the size of the egg I'm not surprised they need to rest after
Never too old to go in a pot, will just take longer slower cooking, or better still minced
Sounds like you are already sharpening the knife :-).