Diagnoses of hybrid hummingbirds (Aves: Trochilidae). 17. Documentation of the intrageneric hybrid (<I>Archilochus colubris</I> × <I>Archilochus alexandri</I>)

Abstract

Although the breeding ranges of Archilochus alexandri (Black-chinned Hummingbird) and Archilochus colubris (Ruby-throated Hummingbird) are narrowly parapatric in central Texas and central and southern Oklahoma, there have been few reports of hybridization in the literature and no well-documented hybrid specimens. Here we provide a comprehensive assessment of two male hybrids collected, respectively, in Grayson County, Texas, and East Baton Rouge Parish, Louisiana. As has been the pattern in other hummingbird hybrids, both specimens exhibit a blended mosaic of plumage characters of the parental species. Sequence for mitochondrial cytochrome c oxidase subunit 1 (CO1) for the hybrid specimen from East Baton Rouge Parish (LSU 182,831) confirms A. colubris as the female parent.

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Graves, Gary R., Dittmann, Donna L., and Cardiff, Steven W. 2016. "<a href="https://repository.si.edu/handle/10088/28192">Diagnoses of hybrid hummingbirds (Aves: Trochilidae). 17. Documentation of the intrageneric hybrid (<I>Archilochus colubris</I> × <I>Archilochus alexandri</I>)</a>." <em>Proceedings of the Biological Society of Washington</em>, 129, (1) 1–9. <a href="https://doi.org/10.2988/0006-324X-129.Q1.1">https://doi.org/10.2988/0006-324X-129.Q1.1</a>.

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