Sometimes life is cruel. I noticed a few gray feathers on the front porch mat, perhaps part of a wing. Later I noticed an orange red tuft. It was the head of a bird. I searched to identify the bird and learned it was a ruby crowned kinglet. The kinglet is known for its friendly nature and can lay a clutch of up to 12 eggs. They make their nests high in trees sometimes 100 feet up, so little is known about their nesting activities. They scratch around on the ground eating insects and also consume poison ivy berries and dogwood seeds. So sorry you met an unfortunate demise sweet little bird. Please know I mourned for you the whole day through and I'll remember you. Sometimes it's sad to have a cat.