Aerial shot of migrating group of swans, cygnus olor, flying together in slow motion, springtime return

nature flora spring springtime wildlife dendrological behaviour snow dendrology botanical return march change of weather brown grus return home migrating season bird flying cygnus olor together group aerial drone swans slow motion returning home waking up melting field flight cygnus cygnus flock migrating birds breeding area behavior scandinavia finland earthy colors migratory ecology natural landscape flat slowmo