Willow Flycatcher (Empidonax trailii) September 12, 2019 1500 × 1200 Willow Flycatcher (Empidonax trailii) Willow Flycatcher (Empidonax trailii), July 2019, Oceanside. Breeder. June, 2019. Oceanside marsh preserve, New York. Breeder. Marshes, wet meadows.