| 1. | The sound of wind chimes and bird calls will fill the air.
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| 2. | For its weight, this species has one of the loudest bird calls.
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| 3. | The air was filled with bird calls and sounds of the wild.
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| 4. | Beluga whales are such expert mimics they can even repeat bird calls.
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| 5. | These birds call is a raspy trill, almost a mechanical sound.
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| 6. | This certainly gives a new meaning to " bird calls ."
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| 7. | Somewhere in the distance, a tiny bird calls to its mate.
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| 8. | Non-breeding birds call only at dawn and dusk, sometimes in duet.
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| 9. | At the monastery, Helga uses a bird call to catch Herr Flick's attention.
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| 10. | Monica Seles warbling bird calls _ the coo of the Serbian bronchital loon.
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