Ecuadorian hummingbirds chirp ultrasonic songs of seduction

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Paolo David Escobar/Neoselva Photography

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 of hummingbirds can sing and hear frequencies beyond the range of other birds. The unusually high-pitched songs may help the birds woo above background noises in their windy, mountain environment. (Paolo David Escobar/Neoselva Photography via AP)