Bird migrations rank as one of nature’s greatest spectacles. Thanks to GPS tracking, scientists are uncovering extraordinary insights into ancient and mysterious journeys – and new threats that are reshaping them.
As storm-chasing seabirds, Desertas petrels seek out hurricanes that draw deep-sea creatures to the surface. Only about 200 pairs remain, although the population is stable.
Each bird is no bigger than a pigeon and they all breed on a single deserted island off the west coast of north Africa, fanning out across the Atlantic Ocean to forage.