This alarming conclusion,to be outlined this week at a major zoological conference in London,is based on a new generation of tracking units that have been monitoring the behaviour of these giant birds for the past few years.

• 在过去的几年中，科学家利用一种新型跟踪设备对信天翁的行为进行了监控，才得出了这一惊人的结论，并在本周于伦敦召开的一个动物学会议上将之公布。