Multiple choice general knowledge sports The Largest sea bird Ostrich Albatross Humming Bird Swift Reveal answer Fill a bubble to check yourself B Correct answer Explanation The Albatross is the largest seabird, with a wingspan that can reach up to 3.7 meters (12 feet). The Ostrich is the largest bird overall but is flightless and lives on land. Hummingbirds and Swifts are much smaller birds.