Yesterday, I noticed that Sampson was acting "off". He was hanging around upstairs, something he usually avoids because it's Haley the Queen Cat's turf. He was also laying in a particularly "flat" fashion, pressing his belly into the ground when he usually curls up or flops on one side.
At 3:30 he began yowling - a horrible sound. I cuddled him to comfort him, then put him in a room by himself (away from other cats) in a comfy place. This morning I opened the room and found him dead.
He'd been peeing on soft things for a couple of weeks, so he might have had kidney issues. He'd got himself locked in a room two days ago, and instead of leaving his usual large poop, he only left pellets, so maybe he had intestinal blockage. I found a small pool of what looked like bile on one of the shower mats, so maybe it was his stomach.
He adopted us two years ago by showing up here one day and never leaving. He was our most affectionate cat, always claiming any available lap and overflowing it with his 18 lb self. He had a short but happy life of chasing moles, voles, squirrels, and occasionally one of our chickens. He'd finally worked out his "issues" with Dora and they were nose-touching friends, leaving Jane the skinny cat as the only one who'd actively get in his face and challenge him.
We're down to 4 cats now, which means it's time to start contemplating kittens.