TY - RPRT TI - Reproduction by an altricial songbird, the red-winged blackbird, in fields treated with the organophosphate insecticide fenthion AU - G.V.N. Powell PY - 1984 DO - 10.2307/2403038 UR - https://pubs.usgs.gov/publication/5221916 ID - 5221916 ER -