Birdwatchers look at birds. Trackers look for animal tracks. And if you put the two together, they will look for tracks of… birds. Tracks are often not the first thing you think of with this species. In the air, they leave nothing behind. Yet there is a lot to be found in bird tracks, for example along the Lek near Nieuwegein.
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Zoëy on bird tracks: ‘It’s just CSI, man’
