Birds may not be so bird - brained after all . A study of Japanese tits has shown they can " speak in phrases ", an ability previously thought to be unique to humans . Displaying talents that may force us to change our traditional concepts of human superiority , Japanese tits could produce a " scan the surroundings for danger " call and then add a " come here " sound _____ the end and , in effect creating the phrase " come here and scan for danger ". 为什么这里空白填的是onto，我搜出来不就表示运动的方向，为什么这里用的是onto