We saw this Acadian Flycatcher in Susquehanna State Park, MD on May 2nd, 2009. We were participating in a Harford Bird Club spring bird (fun) competition.

And I saw this one in about the same place on a much nicer day (weather-wise) on May 8th, 2009. Maybe it is the same bird?

This bird was in the same park on May 18th, 2014.

I saw this one at Bombay Hook on May 24th, 2015.

This bird was at Susquehanna State Park on May 9th, 2020.