When I have necropsied or processed chickens I have always found the grit in the gizzard not the crop.So, lost a pullet 2 days ago. Did a necropsy on the refridgerated body last night. Found large undigested fish meat pieces in her crop. Sour crop maybe? Couldn't find anything that looked like grit in there. Just soupy. Only thing that didn't look 'right' to me other than the mite issue that surfaced last week.
Anyone ever have a chicken that wouldn't eat grit? Guess she pulled herself out of the gene pool... Oh well. Her sister, the other Lav Orp, seems about as happy and chipper as a bird should be, so...
Anyway. Just noodling it over in my head and staring at my chickens wondering if there's anything else I'm missing. They have access to all sorts of grit sizes.