TY - RPRT TI - Patterns of maternal yolk hormones in eastern screech owl eggs (Megascops asio) AU - D. Caldwell Hahn PY - 2011 DO - 10.1016/j.ygcen.2011.04.001 UR - https://pubs.usgs.gov/publication/70004613 ID - 70004613 ER -