TY - RPRT TI - Parasitism, productivity, and population growth: response of Least Bell's Vireos (Vireo bellii pusillus) and Southwestern Willow Flycatchers (Empidonax traillii extimus) to cowbird (Molothrus spp.) control AU - Barbara E. Kus AU - Mary J. Whitfield PY - 2005 DO - 10.2307/40166811 UR - https://pubs.usgs.gov/publication/1008117 ID - 1008117 ER -