My old male cat, age 18 will not push open the cat flap any more. He'll resist being put out in the garden and as it's so cold I've relented months ago and put down a litter tray for him. We have other cats who still use the cat flap to leave the house to do their business. Our old cat will mostly use the tray for weeing and pooing. Sorry for TMI but sometimes the poo is semi liquid. Sometimes he'll walk the length of the kitchen, get right up to the tray, facing it and squat and do his poo. Fortunately he always wees in the tray but at least once per day the poo is on the floor close to the litter tray (usually overnight). I watch him like a hawk and I know it's him and not the other cats. Any advice about dealing with cat dementia? The cats have lived together for 12 years so i don't think there any issues over territory.
Thanks.