Ashish Mahla

I also heard creeper hissing sound when I was trying to tame a parrot, while playing minecraft. Although I didn't see any creepers around me. But there was a cave besides me. But when I moved away from the cave, the creeper sound disappeared. I tested this in a separate world and the sound was coming when parrot was near a creeper. I have attached a video of my findings.

^{(Bad video quality because of 10MB attachment size limit)}