Monarch Butterfly (Danaus plexippus).  Monarch Butterflies cluster together on the pines and eucalyptus trees during their migration to overwinter in Monarch Grove Sanctuary, Pacific Grove, CA.

Royalty-free stock photo ID: 103834388

Monarch Butterfly (Danaus plexippus). Monarch Butterflies cluster together on the pines and eucalyptus trees during their migration to overwinter in Monarch Grove Sanctuary, Pacific Grove, CA.