Gabriel Norevik

A male European Nightjar, showing its prominent white wing and tail ornaments during a territorial display. Photo: Ervín Hrtan A study on how white patches convey the quality of male European Nightjars By Richard Schnürmacher Many avian species sport bright, contrasting colours, but what about the birds active at night? Variation in the white markings of adult male European Nightjars suggests sexual selection on their size. Age and body condition strongly influence how big these ornaments...

One of the contributors to the study, an adult male European nightjar.   Photo: Gabriel Norevik A study on the spatial consistency and repeatability of European nightjars Caprimulgus europaeus tracked across multiple years By Gabriel Norevik Do European nightjars return to site they visit previous years? Birds with GPS-trackers reveal their site-fidelity across the annual cycle Nightjars regularly revisit the location where they have bred and wintered Migration routes are more flexible but...