| 41. | Dusky woodswallows adhere to seasonal migration and movements.
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| 42. | Beginning in the 16th century they began a seasonal migration for work in the Livorno area.
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| 43. | Seasonal migration is one example of predictive homeostasis.
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| 44. | The study of seal mandibles aid in gaining understanding of deaths and predict probable seasonal migration.
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| 45. | This was supplemented by the traditional seasonal migration.
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| 46. | An amateur naturalist, Musgrave enjoys watching the birds that visit his Houston-area home during their seasonal migrations.
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| 47. | There was no indication of seasonal migration.
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| 48. | It undertakes seasonal migrations to different depths.
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| 49. | Seasonal migration routes evidence their ancient journeys.
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| 50. | It was no ordinary seasonal migration.
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