this post was submitted on 14 Mar 2025
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Apparently the head tilt is a sound thing that helps them locate the position of sounds above/below them better. Humans are built different so we don’t need to do that to locate the source.
Or so I’ve heard. A real scientist is welcome to correct me.
Humans have the same issue, we just don't have that same instinct for whatever reason.
Location is determined by the time-of-flight difference in the sound wave between each ear. So if something hits your left ear first, you know that it's coming from the left.
You can't do that when things are above/below.
More: https://www.youtube.com/watch?v=Oai7HUqncAA
You obviously have never been near a tree with a singing bird in it. You can definitely tell that the sound comes from above. That’s because the shape of the outer portion of the ear somehow funnels the sound in a way that makes it possible for the brain to determine the origin of the sound.
It never works for me.