The squabbles often get started when one male finds that a neighboring male has approached too close to the border. He will fly up to his side of the border at once and let out a series of sharp, rapid cries. The other will respond with a similar cry and fly towards the other, and that's the way the quarrel begins.
爭吵的產生，往往是由一隻雄鳥在自己的領域內，發現隔鄰的雄鳥出現在邊界附近；它會立刻飛到邊界旁發出急促而高亢的聲音，另一隻聞聲，也會發出相同的聲音飛近前者，爭吵於是展開。