Willow Flycatcher (Empidonax trailii) September 12, 2019 1500 × 1200 Willow Flycatcher (Empidonax trailii) Willow Flycatcher (Empidonax trailii), May 2019, East Hampton. Breeder. Late May, 2019. East Hampton, New York. Marshes, wet meadows. Breeder.