Ruby-throated Hummingbird (Archilochus colubris), Bisbee, Cochise County
This Ruby-throated Hummingbird was
found and photographed by Sheri Williamson on 26 and 27 October 2015
Pending Arizona Bird Committee acceptance, this will
likely represent the sixth state record, probable fifth individual,
and the second banded Ruby-throated Hummingbird in
Ruby-throated Hummingbirds breed across southern Canada to extreme eastern British Columbia, winter as far north as southern Sinaloa, and are uncommon but regular migrants as far west as the Trans-Pecos region of Texas.
Identification of female and juvenile male Ruby-throated
Hummingbird is extremely difficult due to similarity to
its congener, Black-chinned Hummingbird, and different
hybrid combinations. It is possible that these
identification challenges contribute to the scarcity of convincing reports from Arizona.
Identification of adult males and more advanced
immature males, such as this one, is more
straightforward. Note graduated primary widths, inner primary emargination
(notched inner primaries), narrow P10, short bill, deeply notched tail, orange-red gorget iridescence,
extensive and bright green on upperparts. No signs suggestive of hybrid origin (out-of-range measurements, ambiguous primary and/or rectrix shapes, rufous in tail) were found during banding on 27 October.
26 October 2015, photo by Sheri Williamson
27 October 2015, photo by Sheri WilliamsonAll photos are copyrighted© by photographer
Submitted on 04 November 2015