| 11. | The eye ring tends to be grey but red-brown when breeding.
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| 12. | A whitish eye ring and slightly decurved bill are distinctive traits.
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| 13. | The upperparts are grey-olive, with a rufous rump, tail, wings and eye ring.
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| 14. | The head is black, or blackish-blue with a broad, pale blue eye ring.
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| 15. | They have white wing bars and an inconspicuous white eye ring.
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| 16. | The eye ring and the base of the otherwise black bill are red.
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| 17. | They turn brown in the last instar and have a yellow eye ring.
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| 18. | Measuring long, this nightingale-thrush has a bright orange bill, eye ring, and legs.
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| 19. | The tiger's-eye ring she gave him 25 years ago, before they were engaged.
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| 20. | They have pink legs, an orange eye ring and red beaks.
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