A flock of Willets and Short-billed Dowitchers take flight in Las Salinas mangroves, Zapata Swamp, Cuba (photo by Ernesto Reyes) Willets and Short-billed Dowitcher in flight by Ernesto Reyes Technical Details Camera: Canon EOS 5DS R Taken: January 28, 2018 Focal length: 400mm Aperture: f/45 Exposure: 1/2,000 second ISO: 1600