 an occupant of 10 Downing Street that Keir Starmer has to impress. Larry the cat stepped out of the famous residence today where he's lived since the days of David Cameron. The cat was adopted in 2011 to help hunt mice, but he's also gone after pigeons. He's outlasted five prime ministers. He must be good at his job. Next on the CBS Weekend News, where the wild things are, what's behind a growing population of tropical parrots in the urban jungle of Los Angeles.