This R package contains functions for downloading and munging data from the U.S. Geological Surveys North American Breeding Bird Survey (BBS) via file transfer protocol (FTP)
(Pardieck, Ziolkowski Jr, Lutmerding, & Hudson, 2018; J. R. Sauer et al., 2017). This package was created to allow the user to bulk-download the BBS point count and related (e.g.,
route-level conditions) via FTP, and to quickly subset the data by taxonomic classifications
and/or geographical locations. This package also maintains data containing the trend and
annual indices from the most recent (1996-2017) hierarchical population analyses (J. Sauer
et al., 2017).