Female birds may have lost desire to sing due to predation

(Phys.org)—A trio of biologists has conducted a study of one kind of song bird and their results suggest that the females of the species may have lost the desire to sing out of fear it would lead predators to their nest. In their paper published in the journal Biology Letters, Sonia Kleindorfer and Christine Evans, with Flinders University in Australia, and Katharina Mahr with the Konrad Lorenz Institute for Ethology in Austria, describe their study of superb fairy wrens in their native ha