Environment

More than 120 decibels: These are probably the loudest birds in the world

Measuring the sound intensity of 123 bird species pointed to פעמונית חשופת-גרון and קריאמה אדומת-רגל as the birds that emit a sound whose intensity surpasses מסורי שרשרת and פטישי אוויר. The sound intensity was found to be related to body structure, but there remain open questions about the role that powerful sound plays in evolution and in the lives of birds.