Today a Gray Catbird came to the feeder. For a couple of weeks I have been hearing 'kittens' out in the woods beside my apartment. We have a stray cat that we feed, and she has had kittens, so I thought they must be hers. But every time I went out to look... nada, níl cat amhain ann. So... the arrival of the Catbird explains all. It does mew like a cat, incredibly so. Mystery solved. Nice bird.