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    The Natal Pterylosis of Hummingbirds

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    Subject
    Natal Pterylosis; Hummingbirds; neossoptile; Glaucis; conglomerate downs; Apodioforme
    Author
    Collins, Charles T.
    Journal Title
    Scas: Bulletin of the Southern California Academy of Sciences
    Volume
    77
    Issue
    scas/vol77/iss1; 1
    Metadata
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    URI
    https://scholar.oxy.edu/handle/20.500.12711/10771
    Abstract
    Of the hummingbirds examined, most have a common pattern of natal down distribution: a single paired row of filamentous mid-dorsal neossoptiles. One exception, Glands hirsuta, typically has 30 short conglomerate downs on eight tracts, including the dorsal cervical region. The taxonomic usefulness of natal pterylosis seems to be at the intrafamilial level in the Apodiformes.
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