Window slit flute

recorder placed on a window sill. windows are closed but there is a small slit that lets in the outside sounds. Heavy traffic is already daunting at this time of a day. As well as unceasing landscape and gardening works in the neighborhood nearby. But the highlight of the recording is a sound that is similar to a wind instrument. It occurs only when the wind is strong and blows into western direction . You can also hear the cracks of my busted ankle. (sony d50)