Perek Shira teaches us that each bird has its own niggun (melody).
The Land of Israel is blessed with wonderful menagnim ksherim, upright melodists, who live their lives in purity and sing and play their melodies for the purpose of praising Hashem's Name and bringing people closer to Him. One of these is my cherished friend and spiritual brother, Shlomo Katz. One night, he couldn't sleep. He took a walk to the Holy Western Wall (Kotel) between midnight and first light, and he heard the birds singing this niggun, which he recorded for us. Enjoy, and have a wonderful Shabbat Shira!