Resplendent Quetzal: Mexico's sacred bird. Learn about these birds and the problems they’re facing on today’s BirdNote Daily: birdnote.org/listen/shows/resplendent-quetzal-mexicos-sacred-bird Photo © ryanacandee | BirdNote

939K views · 76K reactions | The quetzal might be one of the most beautiful birds in the world. "The Hummingbird Effect" premieres Wednesday, April 12 at 8/7c on PBS. [VID: Compilation footage of quetzal flying] | Nature | PBS | Facebook

55K views · 669 reactions | The bird-call effect, which resembles the warble of the quetzal bird, a sacred animal in Mayan culture, was first recognized by California-based acoustic engineer David Lubman in 1998. The 'chirp' can be triggered by a handclap made at the base of the staircase. | Historicalindigenoussites | Facebook