The dark, smudgy streaks on Xavi Bou's photographs suggest the jerky ink tracks created by a malfunctioning printer, but they actually record the various patterns birds trace while flying in flocks.
The animal kingdom is full of extraordinary endurance stories, but few are as astonishing as the migration of the bar-tailed ...
Many migratory birds die each year flying into the blades of our wind farms. Weather radar data is showing us how we can be nicer to our skyfaring friends. Norway is sacred ground for nature lovers.
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