Ключевые слова: adaptation, aerial, altitude, arid, avian, balance, behavior, bird, canyon, desert, ecology, ecosystem, endanger, environment, feather, focusse, glide, habitat, landscape, migration, mountain, nature, observation, pattern, point, predator, predatory, rare, region, scavenger, silhouette, soar, species, survival, terrain, vulture, wilderness, wildlife, wingspan,