Migrate or not?

Two birds that did migrate, aren't. The Redwing Blackbirds dangled from a birdfeed fixed at a friend's deck rafter. Surprised and delighted to see them the other day I said, "They're back early!" My friend said, "No, they never left."

The Anna's Hummingbird is a family of Hummingbird who has become a year-world resident of the Pacific Northwest, changing their migration history because humans have taken to feeding them sweet water in feeders.