This project and the R package watlastools is no longer actively developed, and has been superseded by the more general atlastools package: https://github.com/pratikunterwegs/atlastools.
watlastools was an R package written by Pratik Gupte, at the University of Groningen's Theoretical Biology Group, with functions that process high-resolution shorebird tracking data collected by the Wadden Sea ATLAS project.