Кости крыла колибри. Источники - <a rel="nofollow" class="external text" href="https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2013.0580">Fossil evidence of wing shape in a stem relative of swifts and hummingbirds (Aves, Pan-Apodiformes)</a> (очертания крыла Archilochus colubris) и <a rel="nofollow" class="external text" href="https://bioone.org/ebooks/Ornithological-Monographs/Ornithological-Monographs-No-77/Chapter/Introduction-to-the-Skeleton-of-Hummingbirds-Aves--Apodiformes-Trochilidae/10.1525/om.2013.77.1.1">Introduction to the Skeleton of Hummingbirds (Aves: Apodiformes, Trochilidae) in Functional and Phylogenetic Contexts</a> детализация косточек.
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<span class="int-own-work" lang="en">Own work</span>