I spent a couple of hours looking for dippers on Thursday morning, 3-1-2018.
I started around 8:30 and ended around 10:30.
I saw 5 birds.
1) at the Fairy pond area above the park I saw 2 birds fly up stream together.
2) at bridge 1 I saw the orange female. No sign of a second bird.
3) at bridge 3 I saw the blue male and an unbanded bird flying to the nest several times with nesting materials (photos attached).
No sign of birds at Main Street or Hersey Street.