Black-chinned Hummingbird x Broad-tailed Hummingbird, Longmont, Boulder County (Colorado, USA), 8th July 2015 - copyright Steve Mlodinow
(photo ID: 2878)
Steve picked up on this bird as being rather different from Black-chinned Hummingbirds. He writes:
"The primary tips are distinctly narrower, a bit straighter. The back color is actually rather like that of a Broad-tailed Hummingbird, which would explain the narrow, straight primary tips. And... the inner primaries do not form a straight line, but start to widen after P4 or so, consistent with a non-Archilochus parent. Such as a Broad-tailed."
Black-chinned Hummingbird x Broad-tailed Hummingbird (same bird as in photo ID 2878 above), Longmont, Boulder County (Colorado, USA), 8th July 2015 - copyright Steve Mlodinow
(photo ID: 2879)
Black-chinned Hummingbird Archilochus alexandri
Broad-tailed Hummingbird Selasphorus platycercus