Why do birds sing? August 5, 2020March 3, 2012 by Pamela Landy In most species of songbirds, only male birds sing, and for only two reasons: to protect territory and to attract a mate. Related AnswersDo birds sing only in trees? No, some species sing on the ground. Shorebirds such as…How fast can birds fly? Spine-tailed swifts have been clocked at speeds of up to…Who wrote the short story on which Alfred Hitch-cock's The Birds (1963) is based? Daphne du Maurier wrote the short story that inspired Hitch-cock's…What song did Tom Hanks sing to his mother (Mercedes Ruehl) as proof her son was alive in Big (1988)? Tom Hanks sang "The Way We Were" to his mother…In what movie did Doris Day first sing, "Que Sera, Sera"? Doris Day first sang, "Que Sera, Sera" in The Man…In what film did Judy Garland sing "Dear Mr. Gable, You Made Me Love You"? The love song "Dear Mr. Gable, You Made Me Love…