Lack the red throat, possessing instead a whitish throat and underparts.
Distinguished by a brilliant, ruby-red iridescent throat (gorget) that can appear black in certain lighting. archilochus colubris
Their specialized wing anatomy allows them to rotate their wings nearly 180 degrees, enabling them to fly forward, backward, and hover in place. Migration and Distribution Fracture Hunting in Ruby-Throated Hummingbirds ... - PMC Lack the red throat, possessing instead a whitish