Skip to ContentSkip to Navigation
About usNews and EventsNews

Alternate non-stop migration strategies of pied flycatchers to cross the Sahara desert

14 April 2016
Photo: Roef Mulder

Each year more than two billion songbirds cross the Sahara, but how they perform this formidable task is largely unknown. Using geolocation tracks from 27 pied flycatchers, a nocturnally migrating passerine, Janne Ouwehand and Christiaan Both show that most birds made diurnal flights in both autumn and spring. These diurnal flights were estimated to be part of non-stop flights of mostly 40–60 h. In spring, birds flew across the Sahara, while autumn migration probably circumpassed part of the desert, through a long oversea flight. Their data contradict claims that passerines cross the Sahara by intermittent flight and daytime resting. The frequent occurrence of long non-stop flights to cross the desert shows migrants' physiological abilities and poses the question why this would not be the general migration strategy to cross the Sahara.

More information

  • Contact: PhD Janne Ouwehand, Conservation Ecology Group, or: prof. Christiaan Both, Conservation Ecology Group
Last modified:05 April 2019 11.50 a.m.
printView this page in: Nederlands

More news

  • 16 July 2019

    Thirteen Veni grants for young Groningen researchers

    Thirteen researchers from the University of Groningen (UG) and the UMCG have been awarded Veni grants within the framework of NWO’s Innovational Research Incentives Scheme. A terrific result building on last year's successes, where 12 Groningen researchers...

  • 11 July 2019

    UG to build new observatory in dark Lauwersmeer Region

    The Kapteyn Astronomical Institute of the University of Groningen is working on a concrete plan for a new observatory in the Dark Sky Park Lauwersmeer. The observatory will be placed at the Lauwersnest Activity Centre of Staatsbosbeheer in Lauwersoog...

  • 11 July 2019

    Major companies’ annual reports too vague about climate impact

    Many major Dutch companies publish extensive information about climate impact in their annual reports. However, very few companies provide concrete, detailed information about their own CO2 emissions, the impact of climate change on their business...