On 19 June 2014, a few miles outside of Nome, Alaska, a biologist named Wally Johnson trapped a male Pacific Golden Plover sitting on a nest.

On 19 June 2014, a few miles outside of Nome, Alaska, a biologist named Wally Johnson trapped a male Pacific Golden Plover sitting on a nest. After weighing and measuring the bird, Johnson attached a small satellite transmitter to his back and let him go.

The transmitter’s identification number ended in 97, so Johnson called the plover Number 97. Watch the map shown below and do make it a point to read out all the milestones shown on it. Then you know the feat these birds perform.