| 21. | Wading birds use the mud flats and beaches all the time, " he said.
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| 22. | Tides raise levels of major rivers and flood mud flats.
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| 23. | During late summer, exposed mud flats provide a source of food for migrating shorebirds.
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| 24. | Herons, white and long-necked, flapped lazily on the mud flats.
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| 25. | Many were left to putrify on mud flats after the floods receded, attracting rats.
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| 26. | It grows on mud flats and coastal sand dunes from northern Mexico to Ecuador.
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| 27. | At low tide, moored boats were stranded on mud flats.
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| 28. | They sailed until reaching mud flats probably near Heirisson Island.
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| 29. | It can be found on mud flats and around desert springs, between in elevation.
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| 30. | The east coast instead borders to mud flats and tidal creeks of the Wadden Sea.
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