Cassowary territorial rumbling.
419,433
Published 2015-10-18
This video shows a large young female bird letting others know this is it's territory. It gradually inflated its whole head, neck and wattles before bowing over as shown to force the air out making the long low vibrating sound. This sound can travel very long distances in the rainforest.
I have only seen females make this long continuous sound and usually when another female is in the vicinity although both males and females make the same sound broken up into series of three or four rumblings to alert other birds of the presence as they move around the landscape and to avoid aggressive interaction.
An amazing experience to witness. The sound is so low apparently some of the range is inaudible to humans. This recording on an iphone doesn't come anywhere near the actual sound but does show the effort put into making it.
All Comments (21)
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This is clearly a dinosaur.
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Imagine T-rex rumbling like this but 20 times louder
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The pitch of the Cassowary's call is around 23 Hertz, which is below my hearing range. If you're like me and can't hear anything, try playing the video back at double speed. This will increase the pitch and possibly make the call audible to you (it worked for me!) EDIT: a few helpful commenters have said that YouTube’s speed adjustment doesn’t affect audio pitch. Speeding up the video may still be helpful to you, as it makes the sound happen “faster” so it’s easier to pick out the long, low, drawn-out sound above the background noise. Of course, wearing good-quality earbuds can also help.
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That's insane how much bass comes from that bird.
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I love how we go from an ominous powerful rumble to clumsy licking and grooming noises
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Why does Australia need to continue supplying the earth with terrifying creatures?
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Amazing. Notice how the she took in so much air that her feathers protruded all over her body. After that haunting call, she preened to get her feathers put back in place neatly--must look nice when the male comes to call! Imagine hearing that call while you're camping, far from civilization--better than any ghost story around the camp fire! Thank you for sharing that!
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It's making that deep sound?! Yegads, that's freaking terrifying! Lady, you can have whatever territory you want. Just don't kill me!
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The rumbling coming from the cassowary is similar to what is thought the t-rex sounded like
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Shit sounds like it's charging up a spirit bomb
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It took me awhile to realize THAT noise was coming from the bird and not some plane. Absolutely fascinating.
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At that low frequency, it sounds like the deepest thunder rolling in, incredible
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For those having trouble hearing it, 0:55 has a low rumble. It isn’t an aircraft going overhead, that’s the Cassowary. “Clever Girl”. 😍
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I put this on my 6 woofer surround sound system and woke up my roommate thinking there's an earthquake!
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Absolutely incredible. I can't believe what I'm hearing.
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That sounds nothing like a bird. Terrifying.
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imagine walking in wilderness and hearing this sound on a dark night.
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Yes. That's a dinosaur.
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These birds dinosaurs are equally fascinating and terrifying
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Ah, yes, the tourist murder bird.
