My 3 year old cat usually goes outside, the litterbox is for emergency use only
However in the last 3 days he's started peeing in the litter tray
He assumes the position, has a big wee, and then stays in that position for a couple of minutes
He's had 3 indoor wees today -and came in from outside specifically to use the litter tray
I've not noticed any new cats in the area
What's that all about??