| 11. | The vocalisations of the two species are slightly different.
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| 12. | Her vocalisations are somewhat horse-like and her diet is exclusively vegetarian.
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| 13. | Its vocalisations carry better in natural environments than those of the house sparrow.
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| 14. | The saxaul sparrow's vocalisations are little reported.
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| 15. | They also communicate through vocalisations such as whistles, chirps, and wails.
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| 16. | The vocalisations of the two martins are quite different.
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| 17. | The feature is associated with deep, resonant vocalisations that can travel long distances.
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| 18. | However, ongoing research has so far failed to detect ultrasound within tui vocalisations.
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| 19. | Furthermore, only 5 % of the observed vocalisations were made up of barking.
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| 20. | Square-tailed kites exhibit pre-copulatory behaviour such as vocalisations and allopreening.
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