Some tree swallows have returned to the Marine Nature Study Area in Oceanside, NY. Usually it takes me a few weeks to be able to track them in flight yet no problem on a wonderful warm spring day.
Comments and suggestions welcome,
Morris

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X-H2S NIKON AF-S NIKKOR 500mm f/5.6E PF ED VR lens 500mm f/5.6 1/3500s 400 ISO -1.7 EV

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X-H2S NIKON AF-S NIKKOR 500mm f/5.6E PF ED VR lens 500mm f/5.6 1/3800s 400 ISO -1.7 EV

3)
X-H2S NIKON AF-S NIKKOR 500mm f/5.6E PF ED VR lens 500mm f/5.6 1/2200s 400 ISO +1.0 EV

4)
X-H2S NIKON AF-S NIKKOR 500mm f/5.6E PF ED VR lens 500mm f/5.6 1/2200s 400 ISO +1.0 EV

5)
X-H2S NIKON AF-S NIKKOR 500mm f/5.6E PF ED VR lens 500mm f/5.6 1/2900s 400 ISO +1.0 EV

6)
X-H2S NIKON AF-S NIKKOR 500mm f/5.6E PF ED VR lens 500mm f/5.6 1/3200s 400 ISO 0.0 EV