Albatross

The widest wings on Earth

Wandering albatrosses have the largest wingspan of any living bird — up to 3.5 m (over 11 feet) tip to tip. The wing is long and narrow rather than broad — an aspect ratio designed for gliding rather than flapping. With this wing shape, an albatross can stay aloft on dynamic soaring patterns over the Southern Ocean’s wind and waves with almost no muscular effort.

A typical foraging trip covers thousands of kilometers in days. GPS tracking has shown individual birds circumnavigating the entire Southern Ocean — Antarctica’s full latitude — in less than two months.

Dynamic soaring

The wandering albatross is the textbook example of dynamic soaring — a flight technique that exploits the wind shear (gradient of wind speed) above ocean waves. By repeatedly climbing into faster wind, turning downwind, and diving into slower wind near the wave surface, the bird extracts energy from the gradient itself. It can fly for hours without flapping, even days at a stretch.

The same physics has been studied by aerospace engineers for soaring uncrewed aircraft. Some unpowered drones have flown remarkable distances on dynamic soaring designs explicitly modeled on albatross flight.

A long childhood, a long marriage

Albatrosses are among the most slowly-reproducing birds:

• Sexual maturity is reached at 6–10 years of age.
• Pairs perform elaborate, multi-year courtship dances before breeding for the first time.
• Each pair produces one egg every other year — just one offspring per two-year cycle.
• A pair stays together for life, returning to the same nesting site year after year. Divorce is rare (estimated 1–2% per year).
• The chick takes 10–11 months to fledge — the longest fledging period of any bird.

These life-history traits make albatross populations extremely slow to recover from any disturbance.

The longline crisis

Longline fishing — used worldwide for tuna, swordfish, and other large fish — is the leading cause of albatross mortality. Boats deploy fishing lines tens of kilometers long, with thousands of baited hooks. Albatrosses dive on the bait as the lines are set, get hooked, dragged underwater, and drown.

Estimates have placed annual albatross deaths from longline bycatch at over 100,000 globally. Of the 22 albatross species, 15 are now threatened with extinction, including 3 listed as Critically Endangered.

Mitigation tools — bird-scaring streamers, weighted lines that sink quickly, night-only setting — can reduce bycatch by over 90% when used. The conservation challenge is mostly enforcement, not technology.

A literary celebrity

The albatross has unusual cultural prominence for a Southern Ocean bird. Samuel Taylor Coleridge’s The Rime of the Ancient Mariner (1798) — in which a sailor shoots an albatross and is cursed to wear it around his neck — is the source of the phrase “an albatross around one’s neck.” The poem helped spread the sailors’ belief that killing an albatross brought bad luck, a maritime superstition that persisted into the steam era.