caa a22 4500 463176014 CHVBK 20180406164826.0 cr unu---uuuuu 170326e20071001xx s 000 0 eng 10.1007/s10336-007-0182-9 doi (NATIONALLICENCE)springer-10.1007/s10336-007-0182-9 Autumn migration of Montagu's harriers Circus pygargus tracked by satellite telemetry [Elektronische Daten] [Ruben Limiñana, Alvaro Soutullo, Vicente Urios] Although there is a general understanding of Montagu's harriers migration routes and wintering areas, detailed information on the species' migration is still lacking. However, improvements in satellite tracking technology in recent years, have enabled the study of medium-sized species by means of satellite telemetry. In 2006, ten adult Montagu's harriers were fitted with satellite transmitters in northeastern Spain and tracked during their autumn migration to their wintering grounds in sub-Saharan Africa. The migration took between 10 and 30days, and the end point was determined using breakpoint regressions. Whereas some birds had stopovers of more than a week, others stayed at the same site for only 1 or 2 days at the most. The tagged birds ultimately established at wintering grounds located along the border of Mauritania with Mali and Senegal, a distance of nearly 3000km from the breeding sites. These sites are situated within a small range of latitudes (14° and 17°N), although distributed over a wider range of longitudes (−15°E and −4°E), with some birds occupying sites more than 1000km apart. The distance covered in 1 day during the migration ranged between 93 and 219km, with peaks of traveling speed of up to 65km/h. Harriers were recorded traveling only during daytime, covering the longest distances in the late afternoon, suggesting that they are daytime migrants. Most of the distance was covered between 1500 and 2000 hours, and no traveling was recorded between 2000 and 0500 hours. During migration, harriers flew close to the ground (40-100m on average). Improved knowledge of the harriers' exact wintering sites may provide insights on the problems Montagu's harriers face during the winter, highlighting the need to take into account what happens in both the breeding and wintering grounds to implement successful conservation measures. Dt. Ornithologen-Gesellschaft e.V., 2007 Circus pygargus nationallicence Migration routes nationallicence Satellite tracking nationallicence Wintering grounds nationallicence Limiñana Ruben Estación Biológica Terra Natura (CIBIO, Fundación Terra Natura), Universidad de Alicante, Apdo. Correos 99, 03080, Alicante, Spain aut Soutullo Alvaro Estación Biológica Terra Natura (CIBIO, Fundación Terra Natura), Universidad de Alicante, Apdo. Correos 99, 03080, Alicante, Spain aut Urios Vicente Estación Biológica Terra Natura (CIBIO, Fundación Terra Natura), Universidad de Alicante, Apdo. Correos 99, 03080, Alicante, Spain aut Journal of Ornithology Springer-Verlag 148/4(2007-10-01), 517-523 0021-8375 148:4<517 2007 148 10336 https://doi.org/10.1007/s10336-007-0182-9 text/html Onlinezugriff via DOI 1 brief-communication jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10336-007-0182-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Limiñana Ruben Estación Biológica Terra Natura (CIBIO, Fundación Terra Natura), Universidad de Alicante, Apdo. Correos 99, 03080, Alicante, Spain aut NATIONALLICENCE 700 1- Soutullo Alvaro Estación Biológica Terra Natura (CIBIO, Fundación Terra Natura), Universidad de Alicante, Apdo. Correos 99, 03080, Alicante, Spain aut NATIONALLICENCE 700 1- Urios Vicente Estación Biológica Terra Natura (CIBIO, Fundación Terra Natura), Universidad de Alicante, Apdo. Correos 99, 03080, Alicante, Spain aut NATIONALLICENCE 773 0- Journal of Ornithology Springer-Verlag 148/4(2007-10-01), 517-523 0021-8375 148:4<517 2007 148 10336 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer