Following a Black Chested Buzzard Eagle as it brings nesting material across the canyon, geranoaetus melanoleucus

following black chested buzzard eagle nesting material raptor geranoaetus melanoleucus approaching direction changing bird of thermals across prey hunter hawk south america wings flight nature animal beak canyon wildlife predator feathers wild background head white spread patagonia andes king avian birdwatching fauna majestic ornithology powerful tail flapping valley grass