image: This is the nest of a 22-year-old black kite with scarce decoration. Levels of nest decoration are usually lower during the last years of life of breeding kites. This image relates to an article that appeared in the Jan. 21, 2011, issue of Science, published by AAAS. The study, by Dr. Fabrizio Sergio of Consejo Superior de Investigaciones Científicas in Seville, Spain, and colleagues was titled, "Raptor Nest Decorations Are a Reliable Threat Against Conspecifics." view more
Credit: Photo F. Sergio