The term 'Marine Raptor' refers to a type of bird that lives in marine environments. The two crossword solutions for this term are ERNE (4 letters) and ERN (3 letters). ERNE is a species of seabird, also known as the European Storm-petrel, which is found in the North Atlantic Ocean and Mediterranean Sea. ERN is a species of large wading bird, also known as the Eurasian Curlew, which is found in wetlands and coastal areas throughout Europe and Asia.