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Thalasseus maximus
This is a large tern, second only to Caspian Tern but is unlikely to be confused with the carrot-billed giant, which has extensive dark under wing patches. The Royal Tern has an orange-red bill, pale grey upper parts and white under parts. Its legs are black. In winter, the black cap becomes patchy. Juvenile Royal Terns are similar to non-breeding adults. Differences include juveniles having black splotched wings and a yellower bill. An adult Royal Tern has an average wingspan of 51 inches, for both sexes. The Royal Tern's length ranges from 18–20 inches and their average weight is anywhere from 12–16 oz).
Deerfield Beach, FL