Lekking satin bowerbird males aggregate with relatives to mitigate aggression

Sheila M. Reynolds, Mary C. Christman, J. Albert C. Uy, Gail L. Patricelli, Michael J. Braun, and Gerald Borgia Behavior, Ecology, Evolution, and Systematics Program, Biology/Psychology Building, University of Maryland, College Park, MD 20742, USA, Department of Vertebrate Zoology, National Museum of Natural History, Smithsonian Institution, 4210 Silver Hill Road, Suitland, MD 20746, USA, Department of Statistics, University of Florida, Gainesville, FL 32611-0339, USA, Department of Biology, Syracuse University, 108 College Place, Syracuse, NY 13244, USA, Section of Evolution and Ecology, University of California, One Shields Avenue, Davis, CA 95616, USA, and Department of Biology, Biology/Psychology Building, Room 1210, University of Maryland, College Park, MD 20742-4415, USA