Ключевые слова: animal, animals, aragon, avian, biodiversity, bird, bird of prey, bird watch, bird watching, birding, birds, color, colors, colour, eurasian griffon, fauna, flight, fly, flying, glide, gliding, griffon vulture, griffon vultures, gyps fulvus, hover, hovering, huesca, natural, nature, ornithology, pair, pyrenees, raptors, revilla, scavenger, scavengers, soar, soaring, spain, species, two, vertebrate, vertebrates, vulture, vultures, wild, wildlife, wingspan, zoology,