Filtering and Processing Data from Project FeederWatch R package PFW version 0.1.0 Provides tools to import, clean, filter, and prepare Project FeederWatch data for analysis. Includes functions for taxonomic rollup, easy filtering, zerofilling, merging in site metadata, and more. Project FeederWatch data comes from <https://feederwatch.org/explore/raw-dataset-requests/>. Software Depends: R (>= 4.1.0) Imports: dplyr, lubridate, httr2, xml2, stats, utils, curl, stringdist Suggests: testthat (>= 3.0.0), purrr, withr, knitr, rmarkdown Mason W. Maron <mwmaron2@illinois.edu> Comprehensive R Archive Network (CRAN) Mason W. Maron [aut, cre] (ORCID: <https://orcid.org/0000-0001-7170-9373>), Sunny Tseng [rev], Paul Carteron [rev] GPL-3 2025-07-09 application/tgz https://CRAN.R-project.org/package=PFW doi:10.32614/CRAN.package.PFW