I am almost certain I just saw a single starling flocking with about a hundred pigeons. The pigeons were doing their flocking thing, wheeling and pitching about the building tops, and a starling was right in there among them the whole way, as they swooped and dove through several passes before landing on some wires. The one thing we have more of around here than pigeons is starlings, so it's not like he was lost. I've never heard of birds of different feathers flocking together. Is this common?