Once, hiking in the Grand Teton area, we watched one hopping in and out of the water, walking underneath to gather tiny aquatic insects. We each had a toddler on our backs, so videography wasn’t really an option. But I knew when we went back out west that I wanted to see one. On a crowded trail in Glacier, we wandered over to a waterfall with a tripod, binoculars, and cameras, and it didn’t take long before a small inconspicuous gray bird was flying back and forth. We watched for over an hour and we could finally see a small overhang with mosses and ferns that the bird seemed to return to regularly. I was never able to catch it diving into or emerging from the stream, but obviously the bird was very comfortable right at the edges of the splash zone.