The term 'Harbor Bird' can be broken down into two crossword solutions: TERN (4 letters) and SEAGULL (7 letters). Terns are a type of seabird that are found in coastal areas, often near harbors. They have long, pointed wings and a forked tail, and they feed on small fish and invertebrates. Seagulls are also found in coastal areas, including harbors, and they are larger than terns. They have long wings and webbed feet, and they feed on fish, crustaceans, and other small animals. Both terns and seagulls are common sights in harbors, making them both fitting solutions to the term 'Harbor Bird'.