| 21. | After feathering and extending the arms, the rower pivots the body forward.
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| 22. | The coat is fine and short with no feathering.
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| 23. | The shoulder patch is seen in parakeets at their first feathering before fledging.
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| 24. | Later advances included full-feathering and reversible propellers.
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| 25. | The female is smaller with blue-grey feet and without crown feathering.
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| 26. | Much of the feathering has been preserved in an excellent state of preservation.
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| 27. | Feathering on the legs is coarse, and the tail grows very long.
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| 28. | In particular, hen feathering in cocks became standard.
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| 29. | On hens, comb and wattles are sometimes completely obscured by the feathering.
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| 30. | The First Officer then told the Captain that the engine was not feathering.
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