GPS tracking data of homing pigeon flights from a release site

Each csv file contains the data recoded from a GPS device from one pigeon. Initially birds were released in flocks of five from either site HC or BE, eight times. This is the first half of the data. The release site is followed by the name of the individual and then the release number (release site_individual_release number). Then groups were combined into two groups of ten labelled AB or CD. The second half of the data release site and then group, individual and release (Release site Group _ individual_ release number). The columns are labeled. It is 5 Hz data.