English: Swallow-tailed Hummingbird
Portuguese: Beija-flor-tesoura
LB: Eupetomena macroura
Song
I missed the focus on this one, but I think I captured the species characteristics.
The Birds From Brazil – Swallow-tailed Hummingbird
"What a thousand acres of Silphiums looked like when they tickled the bellies of the buffalo is a question never again to be answered, and perhaps not even asked." -Aldo Leopold
A Thousand Acres of Silphiums 
Fantastic
Thanks!