Nautical Raptors is a term used to describe a group of birds that are adapted to living in the marine environment. The term is derived from the Latin word 'RAPTOR' which means 'seize or take by force'. ERNS, the four letter solution to the crossword, stands for 'European Red-Necked Stint', a species of wading bird found in coastal areas of Europe and Asia. This species is well adapted to the nautical environment, and is known for its ability to dive underwater in search of food.