black bird flying against blue sky background and green field in the mountains

aplendohle switzerland slow motion bird alpine wildlife nature crow alps black mountain chough animal beak winter bill wild feather mountains pyrrhocorax fauna graculus snow wing yellow life rock yellowbilled europa sky plumage pyrrhocorax graculus raven eye jackdaw ornithology looking majestic portrait cold daw alpine chough closeup feathers flying animals birds passeriformes posing