| 31. | There Huxley found egrets, herons and bitterns.
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| 32. | The neck is longer in the day herons than the night herons and bitterns.
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| 33. | Like other bitterns, they eat fish, frogs, and similar aquatic life.
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| 34. | The marsh is also an important breeding site for black terns and least bitterns.
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| 35. | Bitterns tend to be shorter necked and warier.
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| 36. | The water nymph is an bittern, a native waterbird related to the heron.
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| 37. | The site provides bitterns and red deer.
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| 38. | The exact process by which the bittern makes its distinctive sound is not fully understood.
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| 39. | Browne even kept a captive bittern to discover how its " boom " was produced.
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| 40. | The endangered Australasian bittern has been recorded.
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