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Which charadriiform birds make the longest migrations?

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Illustration of a crab plover (Dromas ardeola), showing a slender wading bird with long legs, a long pointed black bill, white head and underparts, and contrasting black wings and back. — Charadriiform Crab plover (Dromas ardeola)

The Arctic tern (Sterna paradisaea) is the charadriiform bird that performs the longest annual migration of any bird species.1

These birds breed in the Arctic and winter in the Antarctic, completing a round-trip journey that spans approximately 60,000 to 82,000 km (roughly 37,000 to 51,000 miles). While many members of the order Charadriiformes are strong fliers capable of extensive migrations over water, the Arctic tern's seasonal travel between these polar regions is unmatched in distance.1234