| 41. | If specialist ant feeders like antbirds or larger woodcreepers are present, it tends to keep higher than those species.
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| 42. | The greater scythebill was formerly included in this genus, but it is closer to the scimitar-billed woodcreeper.
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| 43. | Biogeography and molecular data suggest that the relationship between these taxa and the buff-throated woodcreeper deserves further study.
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| 44. | It is usually regarded as a subspecies of the ocellated woodcreeper ( " X . ocellatus " ).
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| 45. | Lafresnaye's piculet, Lafresnaye's woodcreeper and Lafresnaye's vanga are avian species that bear his name.
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| 46. | It was formerly considered a subspecies of the buff-throated woodcreeper ( " X . guttatus " ).
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| 47. | It is monotypic within " Deconychura ", but formerly this genus also included the spot-throated woodcreeper.
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| 48. | It was formerly included as a subspecies of the Amazonian barred woodcreeper ( " D . certhia " ).
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| 49. | The subspecies " X . e . juruanus " is sometimes treated as a separate species, Juru?woodcreeper.
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| 50. | They have stiff, pointed tail feathers, like woodpeckers and woodcreepers, which they use to support themselves on vertical trees.
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