This 2018 photo provided by Paolo David Escobar shows a male Hillstar hummingbird perched on a Chuquiraga jussieui flower in Ecuador. A study released on Friday, July 17, 2020 finds that the species ...

The wonderful sound of birdsong is one of nature's most purest pleasures. However, some birds have taken it to the extreme.

Berkeley -- The beeps, chirps and whistles made by some hummingbirds and thought to be vocal are actually created by the birds' tail feathers, according to a study by two students at the University of ...

WASHINGTON (AP) — Perched on a flowering shrub on a windy Andean mountainside, the tiny Ecuadorian Hillstar hummingbird chirps songs of seduction that only another bird of its kind can hear. As the ...