Black swans have strong flying ability. When flying together for a long distance, they can be seen in a line or a 'V' shape.
Their wings beat slowly and whistle sometimes. In flight and on the water, there will be all kinds of noisy tones. It also produces a series of soft bass notes and tends to whistle when disturbed on the way.
Black swans communicate using voice and visual signals. They have calls for territorial defense and specific sounds used in triumphal ceremonies.
The call is high pitched, like a dog barking, or a bugle Sutra, sometimes high pitched and sometimes low. Visual displays are also used to communicate, such as raising or waving wings to threaten predators or other swans in their territory.
翻译
黑天鹅具有强大的飞行能力,当一起长途飞行时,可以看到它们排成一条线或一个'V'形,它们的翅膀慢慢的拍打并时而发出哨声。在飞行中和在水面上,都会发出出各种喧闹的声调。还会发出一系列柔和的低音音符,并且在途中受到干扰时倾向于发出哨声。
黑天鹅使用通话和视觉信号进行交流。它们有用于领地防御的鸣叫和凯旋仪式中使用的具体声音。叫声高亢,一如狗吠,或者军号经,有时高亢有时低弱。还会使用视觉展示来进行交流,例如举起或挥舞翅膀来威胁其领地内的捕食者或其他天鹅。