Birds from the Yucatan aren't supposed to be in southwestern Wisconsin. But that's one of the wonderful things about birds. They fly, and sometimes they act in a bizarre and unexpected way."

- DONNIE DANN, a bird conservation expert from Highland Park, Ill., on the discovery of a green-breasted mango - a South American hummingbird rarely seen north of the Mexican border - in the backyard of a home in Beloit, Wis.