Acknowledgements

We want to acknowledge all people that have been involved in the development of geolocator tools as well as all participants of the many international geolocator workshops. Furthermore, we like to acknowledge Steffen Hahn and Felix Liechti organisewho organised a first workshop of the analysis of geolocator data from songbirds back in 2011. This workshop has been financially supported by the Swiss Ornithological Institute and the Swiss National Science Foundation. The National Centre for Ecological Analysis and Synthesis (NCEAS) has supported two meetings with experts in geolocator analysis in 2012 ans 2013 and many of the tools that are discussed in this manual were kick started at these meetings. We want to thank James Fox from Migrate Technology Ltd. as well as the US National Science Foundation for contiouing financial support to develop tools and organise workshops.