TY - RPRT TI - Biomarkers of exposure and effects of environmental contaminants on swallows nesting along the Rio Grande, Texas, USA AU - M.A. Mora AU - D. Musquiz AU - J. W. Bickham AU - D.S. MacKenzie AU - M.J. Hooper AU - J.K. Szabo AU - C. W. Matson PY - 2006 DO - 10.1897/05-447r.1 UR - https://pubs.usgs.gov/publication/70028347 ID - 70028347 ER -