噪鹃是热带的一种布谷鸟，它潜伏在灌木丛中，发出有节奏的似狼叫声。
The koel, a tropical cuckoo that lurks in thick cover, has a rising bisyllabic wolf-whistle.
狼的叫声分为四类：狂吠，呜咽，嚎叫和咆哮。
Wolves' vocalizations can be separated into four categories: barking, whimpering, growling, and howling.
大多数狼都有自己的领土，它们通过肢体语言，嚎叫声，以及嗅觉进行交流。
Most wolves hold territories, and all communicate through body language, vocalization and scent marking.
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