| 1. | They will also exhibit a hissing sound when protecting their territories.
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| 2. | Maybe he was passing through and heard a hissing sound,
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| 3. | The female makes a hissing sound if approached while on the nest,
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| 4. | There was a hissing sound of disapprobation above and below.
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| 5. | It has a characteristic high-pitched, highly perceptible hissing sound.
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| 6. | It is accompanied by indistinct electronic buzzing and hissing sounds.
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| 7. | McGowen said Chronicia makes hissing sounds like a cat.
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| 8. | Hissing sounds are heard, and riders are blasted with puffs of air.
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| 9. | A slight but audible hissing sound occurs when the air enters the milk.
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| 10. | The only weird part of what your friend describes is the hissing sound.
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