https://journals.lub.lu.se/os/issue/feed Ornis Svecica 2019-10-14T14:46:45+02:00 Martin Stervander os@birdlife.se Open Journal Systems <p><strong>Ornis Svecica</strong> is an online scientific journal issued by BirdLife Sweden. All contributions are published as open access, available to anyone, and with no publication fee for the authors. The aims and scope of the journal are to provide a forum for full-length or short original research reports, including descriptive ones, and reviews, communications, debate, and letters concerning all fields of ornithology. Ornis Svecica publishes contributions irrespective of the geographic origin of authors and subject, and we welcome submissions not only from professional researchers but from laymen as well. We assume a particular responsibility to offer a process and a forum for the latter, and encourage their submission of results and ideas. The journal language will be English or Swedish with a comprehensive summary in the other language (assistance is offered to authors with insufficient knowledge in the language for the summary).</p> https://journals.lub.lu.se/os/article/view/19598 Ornis Svecica fledges into the modern publishing landscape 2019-10-14T14:46:44+02:00 Martin Stervander martin@stervander.com Sören Svensson soren.svensson@biol.lu.se 2019-05-11T00:00:00+02:00 ##submission.copyrightStatement## https://journals.lub.lu.se/os/article/view/19554 Breeding prerequisites for Ortolan Bunting Emberiza hortulana in Swedish farmland with special focus on foraging 2019-10-14T14:46:45+02:00 Jan Sondell jan.sondell@telia.com Carles Durà carles7292@gmail.com Magnus Persson humlapersson@gmail.com <p>Ortolan Buntings <em>Emberiza hortulana</em>&nbsp;are rapidly decreasing in Sweden. Changes in agricultural practices are the main reason. Landscape simplification due to the removal of semi-natural elements leads to a lack of breeding habitats. Furthermore, due to intensive artificial fertiliser applications and advanced agricultural equipment and technology, crops grow both taller and denser than 50 years ago. In Kvismaren, south central Sweden, Ortolan Buntings have been studied since 2009. Here, we focus on one question: what defines a good foraging microhabitat? In 2017, nesting areas for five females and four males were identified and we did 271 feeding observations. Average foraging distance at different nests varied between 47 and 114 meters. About 70% of the foraging activities took place within crop fields. Ortolans utilized mainly unsown rows, later to be used by tractors for spraying etc. and patchy parts of standing crops. Invertebrates extracted from those areas looked dark, suggestive of ground-dwelling species. Our key management recommendation to create better microhabitats for feeding can be easily achieved by most farmers: to leave two unsown sowing rows (amounting to 0.38 m in width) for each tractor wheel to follow.</p> 2019-05-11T00:00:00+02:00 ##submission.copyrightStatement## https://journals.lub.lu.se/os/article/view/19555 Population development of European Stonechat Saxicola rubicola during the initial phase of its expansion in Western Sweden 2019-10-14T14:46:44+02:00 Reino Andersson samreinoandersson@gmail.com <p>With its 25 confirmed breeding records between 2000 and 2015, the European Stonechat <em>Saxicola rubicola</em> is historically a rare bird in Sweden. The first breeding in the West Coast was found in 2014. Censuses performed in 2017 and 2018 revealed 28 and 30 breedings respectively. Out of 83 investigated territories, most were found in coastal heathlands in Halland. The arrival occurred in the turn of the months March/April and the majority of the males consisted of one year old birds (2cy). Fledgling date for 68 clutches were distributed from May to August. Second clutches were observed for ten out of 32 investigated breedings. The Swedish expansion should be seen in the context of Danish immigration in combination with a large-scale advance via the German Schleswig-Holstein area. The European Stonechat belongs to those range-expanding species that are expected to increase according to predictions of the future bird fauna. Due to warmer climate, plenty of appropriate habitats and high probability of reproduction, the conditions are good for a continued range expansion in southern Sweden.</p> 2019-05-11T00:00:00+02:00 ##submission.copyrightStatement## https://journals.lub.lu.se/os/article/view/19731 Collision with power lines and electrocutions in birds — an analysis based on Swedish ringing recoveries 1990–2017 2019-10-14T14:46:43+02:00 Thord Fransson thord.fransson@nrm.se Lina Jansson lina.jansson@nrm.se Tuomo Kolehmainen tuomo.kolehmainen@nrm.se Thomas Wenninger thomas.wenninger@nrm.se <p>Recoveries of birds ringed in Sweden from the period 1990–2017 were used to analyse the occurrence of collisions with power lines and electrocutions. Out of more than 10,000 recoveries of birds found dead with finding circumstances mentioned, 8.6% was associated with power line constructions. The number of species involved was 51 and high proportions were especially evident in some species of owls and raptors. The overall proportion of recoveries caused by collision / electrocution shows a significant decrease over time. A decrease over time in the proportions of electrocution and collision was also evident when analysing finding circumstances in four species where corpses were sent to the Swedish Museum of Natural History. Information about the power line system in Sweden during the period 2007–2016 shows that the length of local power lines has decreased with about 21% during a ten-year period and that underground cables have increased with 28% during the same period. The results show that collisions with power lines have decreased more than electrocutions and this may imply that there are still many places where birds are at risk of being electrocuted.</p> 2019-07-10T00:00:00+02:00 ##submission.copyrightStatement##