godan verb (-su)
exchange cries; call to each other
Used for animals, especially birds, calling back and forth. Often implies a duet or mutual calling.
朝、小鳥たちが鳴き交わす声で目が覚めた。
I woke up to the sound of small birds calling to each other in the morning.
森の中でフクロウが鳴き交
Owls are hooting back and forth in the forest.