| 11. | Outside of the nesting season they often forage in small mixed flocks.
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| 12. | Outside of the nesting season, these birds forage in mixed flocks.
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| 13. | The nesting season for these turtles is April to August.
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| 14. | The nesting season generally begins in May and lasts for several months.
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| 15. | However, raptorial birds are often aggressively attacked during the nesting season.
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| 16. | Study of the California least tern nesting season was conducted in 1980.
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| 17. | It may be given in flight during the nesting season.
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| 18. | _The nesting season ends and the moulting season begins in late August.
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| 19. | Its song is a trill that becomes more varied during the nesting season.
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| 20. | Access by humans is discouraged during the nesting season.
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