TY - RPRT TI - Social attraction used to establish Caspian tern (Hydroprogne caspia) nesting colonies on modified islands at the Don Edwards San Francisco Bay National Wildlife Refuge, California—Final report AU - C. Alex Hartman AU - Joshua T. Ackerman AU - Mark P. Herzog AU - Cheryl Strong AU - David Trachtenbarg AU - Crystal A. Shore PY - 2018 DO - 10.3133/ofr20181136 UR - https://pubs.usgs.gov/publication/ofr20181136 ID - ofr20181136 ER -