Bald Eagle in tree tilts back its head as it makes famous call, zoomed in

bald eagle wildlife famous call threat vocalization territorial adult scream call eagle haliaeetus leucocephalus dominance wintering bald eagles british columbia harrison mills fraser valley birdwatching tree head tilt back call zoomed in bird of prey aves feathers beak ornithology wild wilderness nature scene predator fauna nature canada national symbol raptor haliaeetus carnivore animal canadian outdoors canadian countryside remote countryside wild places accipitridae united states national bird national bird no people nobody horizontal highpitched peal call