TY - RPRT TI - Thresholds in forest bird occurrence as a function of the amount of early-seral broadleaf forest at landscape scales AU - M.G. Betts AU - J.C. Hagar AU - J.W. Rivers AU - J.D. Alexander AU - K. McGarigal AU - B.C. McComb PY - 2010 DO - 10.1890/09-1305.1 UR - https://pubs.usgs.gov/publication/70003734 ID - 70003734 ER -