Are there swans in Ann Arbor?
Evidence for swans in Ann Arbor
(Alleged) Ann Arbor swans have over 800 friends on Facebook.
The Field Checklist of Ann Arbor's Breeding Birds claims the Mute Swan (uncommon, confirmed breeder) and the Trumpeter Swan (rare, probable breeder).
Evidence against swans in Ann Arbor
At least two swans were shot to death (by a car) in Lodi Township in August, 2009.