TY - RPRT TI - Traffic effects on bird counts on North American Breeding Bird Survey routes AU - Emily H. Griffith AU - John R. Sauer AU - J. Andrew Royle PY - 2010 DO - 10.1525/auk.2009.09056 UR - https://pubs.usgs.gov/publication/70003456 ID - 70003456 ER -