Sunday, March 30th, I walked the length of Ashland creek and saw a Dipper preening under the Main St bridge at 2pm for about 10 minutes. The bird flew upstream in the tunnel and I lost track of it. Didn’t see another bird all the way to the top of the park. On the way back down I heard a singing Dipper above the playground but couldn’t see it until it flew upstream. There was no Dipper seen back at the Main st bridge so its possible the second sighting could have been the same bird. bq