We got 2 kittens last October, introduced them to the outside world about 4 months ago. One of the kittens totally got it, and now uses the garden as her toilet (we have a cat flap). The other one refuses. She will go outside, spend plenty of time out there, and come back in and use the tray. We're starting to put the tray outside and she will use the tray when it's out there, but what with the rain, it's been hard going.
Any advice at all to help get rid? The stench of her poos (she doesn't bury them!) even when they are immediately removed is doing us in!
Am i missing a really simple trick?