It can't be all male cats, because Sam doesn't have that problem. And
it's not food, if they all eat the same diet, which would be my next
guess. The not-burying thing certainly contributes to the odour - even
my female (now RB) cats once in a while didn't bury their waste. I've
heard several guesses as to why some cats don't, but most of them aren't
really helpful guesses as they don't suggest a solution. There is the
theory that it's a cat way of saying 'I'm so big and tough I don't even
need to hide my excrement from predators!', but even if that's true, how
do you convince the cat he's tough enough and has nothing to prove, so
please just start burying it???

Getting back to diet, maybe he processes food a bit differently from the
others, something like the way beans give some people gas and don't
bother others, and he'd improve with a change in diet. That's just a
guess, though.

Cheryl

yes! Oreo,my Tuxieboy's poop smells BAAAAAAD, & he does'nt cover it
either,plus he's big (20lbs.), & tends to poop outside the box,I even went
so far as to buy a large storage box ,he always goes in the corner,so it
falls over the edge!

Brandy by far has the largest, densest, and most profoundly noxious deposits
ever to rampage our nostrils like a horde of particularly filthy marauders on
a long-distance pillaging campaign. She drops logs big enough to make a cabin.
And did I mention the bouquet? She's as healthy as the proverbial horse and
has the same diet as the others, but while Roxie has comparatively delicate
offerings, Brandy's can stop a Mack truck. Stosh's aren't as offensive, but
he does the most thorough job of burying the evidence, to the point of
scatering litter over state lines. Brandy is the only one who leaves her
business exposed to the open air and proudly refuses to cover it.

Blessed be,
Baha