Clusters of Monarch Butterflies hanging from a large Eucalyptus tree during its northern migration to the West Coast of California

monarch butterflies butterflies seasonal migration fluttering insects fall clusters overwintering eucalyptus orange northern migration roosting sunlight migration tree hanging conservation wings nature phenomena congregating winged movement wildlife patterns california winter natural creatures many animal behaviors resting spectacular outdoor life cycle animals sanctuary 4k outdoors magical explore black rare footage experience journey premium quality west coast coastal life