Slight hiss of the wind. Inside a house through a window is not closed. Wind outside. Learn to imitate the sound of the wind www.libertivi.com/lelabodubruiteur_122. Duration: 01:45.
Territorial hisses of a male barn owl (Tyto alba). It is also referred to as the common barn owl. Recorded from inside the occupied barn. To learn more, go to Wiki: en.wikipedia.org/wiki/Barn_owl. Duration: 00:44.