Welcome aboard to our new student Eran Altschuler

25 October 2018

We welcome our new M.Sc. student Eran Altschuler!

Congratulations and warm wishes to our students Inbal and Yosef

27 January 2018

To Inbal for the birth of her daughter, and to Yosef for the birth of his son. We wish them and their families joy and happiness

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New publications

Contrasting aspects of tailswinds and asymmetrical response to crosswinds in soaring migrants

21 February 2018

Becciu, P., Panuccio, M., Catoni, C., Dell'Omo, G., and Sapir, N. 2018. Behavioral Ecology and Sociobiology 72(28).  

Hovering hummingbird wing aerodynamics during the annual cycle. II. Implications of wing feather moult

21 February 2018

Achache Y, Sapir N, Elimelech Y. 2018. Hovering hummingbird wing aerodynamics during the annual cycle. II. Implications of wing feather moult. Royal Society Open Science 5: 171766.  

Moving in the Anthropocene: Global reductions in terrestrial mammalian movements

24 January 2018

Science 359 (6374): 466-469  

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Cross-calibration of different radar systems for monitoring nocturnal bird migration across Europe and the Near East

Liechti, F., Aschwanden, J., Blew, J., Boos, M. Brabant, R., Dokter, A., Kosarev, V., Lukach, M., Maruri, M.M., Reyniers, M., Schekler, I., Schmaljohann, H., Weisshaput, N., and Sapir, N. Cross-calibration of different radar systems for monitoring noctural bird migration across Europe and the Near East. Ecography (In press). doi:


Large parts of the continents are continuously scanned by terrestrial weather radars to monitor precipitation and wind conditions. These systems also monitor the mass movements of bird, bat, and insect migration, but it is still unknown how many of these systems perform with regard to detection and quantification of migration intensities of the different groups. In this study that was undertaken within five regions across Europe and the Middle East we examined to what extent bird migration intensities derived from different weather radars are comparable between each other and relate to intensities measured by local small-scaled radars, some of them specifically developed to monitor birds. Good correspondence was found for the relative day-to-day pattern in migration intensities among most radar systems that were compared. Absolute intensities varied between different systems and regions. The findings of this study can be used to infer about absolute bird migration intensities measured by different radar systems and consequently help resolving methodological issues regarding the estimation of migrant numbers in the Western-Palearctic region. It further depicts a scientific basis for the future monitoring of migratory bird populations across a large spatio-temporal scale, predicting their movements and studying its consequences on ecological systems and human lives.

About us

We are a group of scientists devoted to the study of animal flight, including animal movement ecology, behavior, physiology and biomechanics. We study wild animals in the field and in the lab using a diversity of research approaches. We welcome applications for M.Sc. and Ph.D. studies and post-doctoral work in our group at the Department of Evolutionary and Environmental Biology at the University of Haifa.