| Birds Name | Short-tailed albatross |
| Science Name | Phoebastria albatrus |
| Domain | Eukaryota |
| Kingdom | Animalia |
| Phylum | Chordata |
| Class | Aves |
| Order | Procellariiformes |
| Family | Diomedeidae |
| Genus | Phoebastria |
| Species | P.albatrus |
If you spend time on pelagic birding trips off the coast of California or Alaska, scanning the horizon for true ocean wanderers, you know that albatrosses are the undisputed masters of long-distance aviation. Among the species that navigate the North Pacific, the Short-tailed Albatross (Phoebastria albatrus) holds a legendary position.
Also known as Steller’s Albatross, this massive tubenose is a premier pelagic prize for North American wildlife enthusiasts. Once the most abundant albatross in the North Pacific, it was driven to the absolute brink of extinction by feather hunters, down to just a handful of individuals. Today, it is making a monumental, data-proven recovery.
For birdwatchers based in the United States, spotting a Short-tailed Albatross requires looking past vague generalities. Let’s look closely at the empirical measurements, strict biological timelines, and geographic population data that define this giant pelagic wanderer.
The Short-tailed Albatross is the largest seabird native to the North Pacific Ocean. Its physical structure is an absolute masterclass in aerodynamic engineering, featuring highly elongated, narrow wings specialized for dynamic soaring.
Adults have a highly distinctive appearance. The head, neck, and body are primarily pure white, with a striking golden-yellow or buff wash across the crown, nape, and back of the neck. The upper surfaces of the wings are mostly dark brown or blackish-brown, while the tail is white with a thick, black terminal band.
The most reliable field mark for distinguishing this species from its smaller cousins is its massive, bubblegum-pink bill. This bill features a subtle blue or horn-colored tip that grows progressively brighter and bluer with age. Prominent external tubular nostrils sit on the sides of the upper bill assembly.
The appearance changes completely as the bird matures. Juveniles fledge as uniform chocolate-brown or blackish-brown birds with flesh-colored legs and a pink bill. As they age over several years, they progressively whiten from the belly up. The Short-tailed Albatross is the only albatross in the North Pacific that develops a completely white back at full maturity.
| Morphological Feature | Average Metric Value | Average Imperial Value |
| Total Body Length | 84 to 94 cm | 33 to 37 inches |
| Wingspan | 213 to 229 cm | 84 to 90 inches (7.0 to 7.5 feet) |
| Adult Body Mass | 4,300 to 8,500 grams | 9.5 to 18.7 pounds |
| Bill Length (Culmen) | 125 to 150 mm | 4.9 to 5.9 inches |
| Tarsus (Lower Leg) | 95 to 110 mm | 3.7 to 4.3 inches |
To help you accurately separate a Short-tailed Albatross from other large birds during a West Coast or Alaskan pelagic trip, examine this precise structural comparison:
| Feature | Short-tailed Albatross | Laysan Albatross | Black-footed Albatross |
| Average wingspan | 221 cm (7.3 feet) | 200 cm (6.6 feet) | 205 cm (6.7 feet) |
| Adult Back Color | Pure White | Dark Slate-Black | Charcoal-Brown |
| Bill Color & Profile | Massive, bright pink with blue tip | Slender, dull pink-yellow with gray tip | Deep, dark charcoal-gray to black |
| Leg & Foot Color | Pale pinkish-white to light blue | Light pink to flesh-colored | Solid black |
| Relative Mass | Largest (~5.0–8.5 kg) | Smallest (~2.5–4.1 kg) | Medium (~2.6–4.3 kg) |
Taxonomy
The Short-tailed Albatross belongs to the ancient order Procellariiformes, the “tubenoses.” This group is defined by unique external tubular nostrils and large, internal salt glands located above the eyes. Within this order, it sits inside the family Diomedeidae, the true albatrosses.
The species was first described scientifically by the German naturalist Peter Simon Pallas in 1769 under the binomial name Phoebastria albatrus (originally Diomedea albatrus). The genus name Phoebastria combines Phoebe (referencing the Greek deity of light) with oistros (meaning a strong urge or madness), capturing their restless, wind-driven flight across the globe. Taxonomically, the species is currently monotypic, meaning there are no officially recognized subspecies.
However, recent multi-locus mitochondrial DNA sequencing and morphometric studies have revealed that the global population consists of two genetically separate populations: the “Torishima-type” and the “Senkaku-type.” These two groups diverged roughly 1,000 years ago and function as cryptic lineages with strong pre-mating isolation, despite sharing highly overlapping wintering grounds.
| Taxonomic Category | Scientific Designation | Diagnostic Biological Trait |
| Kingdom | Animalia | Multicellular, heterotrophic organisms |
| Phylum | Chordata | Presence of a hollow dorsal nerve cord |
| Class | Aves | Feathers, hollow bones, endothermic metabolism |
| Order | Procellariiformes | External tubular nostrils, multi-plated bills |
| Family | Diomedeidae | Fused bill-plates, excellent dynamic soaring build |
| Genus | Phoebastria | North Pacific albatross lineage; explicit courtship habits |
| Species | P. albatrus | Largest North Pacific species; pink bill profile |
Distribution
The geographical distribution of the Short-tailed Albatross spans nearly the entire North Pacific Ocean basin, shifting dynamically based on wind patterns and seasonal breeding needs.
During the breeding season (October to June), the population is centered on a few remote islands south of Japan. The primary breeding hub is Torishima Island, an active volcanic islet located roughly 600 kilometers south of Tokyo. A smaller, secondary breeding presence occurs on the disputed Senkaku Islands (specifically Minami-koshima and Kita-koshima) in the East China Sea.
Outside of the breeding cycle, the species disperses completely across the subarctic and temperate waters of the North Pacific. They track deep oceanic upwellings and edge currents, ranging from the coast of mainland Japan and eastern Russia (including the Sea of Okhotsk) eastward across the Aleutian Islands, the Bering Sea, and the Gulf of Alaska, moving south along the western coast of Canada and the United States down to Baja California, Mexico.
Range and Population
The marine range of the Short-tailed Albatross covers millions of square kilometers. Yet, their terrestrial nesting footprint is incredibly tiny, restricted to less than one square kilometer of usable island habitat.
Historically, this species numbered in the millions and was the most abundant albatross in the North Pacific. Between 1885 and 1903, commercial feather hunters slaughtered an estimated 5,000,000 birds on Torishima alone. By 1949, with no birds observed on their historical nesting grounds, the species was widely declared extinct. In 1951, a remnant cohort of roughly 10 to 20 subadults that had survived at sea returned to Torishima and re-established the colony.
Due to intense conservation efforts, the global population has undergone an incredible recovery. Monitoring data collected in early 2026 confirms that the global population has officially passed 11,000 individuals, showing a steady annual growth rate of roughly 8% to 12%.
| Colony / Monitoring Site | Jurisdiction | 2026 Population Metrics | Percentage of Global Output |
| Torishima Island | Japan | 11,067 total birds (>2,100 pairs, 1,600 chicks) | ~90.0% |
| Senkaku Islands | Disputed (Japan/China) | Estimated 650 to 850 individuals | ~9.5% |
| Midway Atoll | United States (Hawaiian Chain) | 8 individuals documented (1 active pair) | < 0.5% |
While the numbers are highly encouraging, the extreme concentration of over 90% of the world’s population on a single active volcanic island leaves the species listed as Vulnerable on the IUCN Red List and federally Endangered under the United States Endangered Species Act.
Habitat
The Short-tailed Albatross uses two distinct environments: deep-water marine zones and isolated, windswept volcanic islets.
When at sea, the species is primarily a shelf-edge pelagic resident. Unlike other albatrosses that spend months over deep, mid-ocean basins, the Short-tailed Albatross concentrates its foraging along continental shelf breaks and outer slopes, typically in waters ranging from 200 to 1,000 meters deep. They prefer regions where steep underwater topography and strong ocean currents interact to generate vertical mixing and nutrient-dense upwellings.
| Habitat Phase | Specific Location Profile | Altitude / Depth Limits | Core Substrate & Features |
| Terrestrial Nesting | Windswept volcanic slopes, slopes | 10 to 150 meters ASL | Bare volcanic ash, sparse bunchgrass tussocks |
| Marine Foraging (Breeding) | Continental shelf breaks, canyons | 200 to 1,000 meters deep | Deep shelf edges, marine upwelling fronts |
| Marine Foraging (Winter) | Bering Sea, Gulf of Alaska, US Coast | 0 to 200 meters deep | High-latitude waters, shelf canyons, currents |
When coming ashore to breed, they select remote islands with restricted human access. Their preferred nesting sites are located on flat, open volcanic slopes or grassy cliffs facing prevailing winds. This open layout is necessary because their high body mass requires wide, unobstructed runways to run along the ground and launch into the air.
Behavior
The flight of the Short-tailed Albatross is highly efficient. They rely on “dynamic soaring,” a technique where the bird extracts kinetic energy from wind velocity gradients directly above ocean swells. By climbing into higher-velocity wind layers and carving down into the lower-velocity wind shadows found within wave troughs, they travel thousands of miles with minimal active wing flapping.
On land, they are clumsy. Because their legs are positioned far back on the body to maximize swimming and paddling rudder efficiency, they walk with a slow, rocking, front-heavy waddle.
Albatrosses are famous for their highly stylized courtship behavior. When young birds return to the colony after several years at sea, they spend years practicing intricate courtship dances to secure a lifelong partner. These synchronized displays include rapid bill-clapping, deep bowing, head-rolling, and “sky-pointing,” where both birds raise their bills vertically toward the sky while emitting a long, high-pitched vocal whine.
[Courtship Dance Sequence]
Adult A: Bow ---> Bill-Clap ---> Head-Roll ---> Sky-Point (Whine)
| | | |
v v v v
Adult B: Bow ---> Bill-Clap ---> Head-Roll ---> Sky-Point (Whine)
Feeding
The feeding strategy of the Short-tailed Albatross is centered on opportunistic surface-seizing. Lacking the physical modifications for deep underwater pursuit-swimming, they capture prey within the upper 1 to 2 meters of the ocean column. They hunt primarily by landing directly on the water to snatch moving prey or by skimming the surface.
Their natural diet is dominated by squid, fish, and small pelagic crustaceans. They hunt diurnally and nocturnally, tracking organisms that undergo vertical migration, moving from the dark depths up to the surface under the cover of darkness.
| Main Prey Category | Dominant Families / Species Groups | Percentage of Diet By Mass | Foraging Target |
| Squid (Cephalopods) | Todarodes pacificus (Japanese Common Squid) | 55% | Nocturnal surface-seizing |
| Pelagic Fish | Exocoetidae (Flying Fish), Sardines, Saury | 30% | Diurnal surface dipping |
| Crustaceans | Shrimp, Hyperiid Amphipods, Krill | 10% | Surface skimming |
| Fisheries Offal | Trawler scraps, discarded fish processing waste | 5% | Ship-following scavenging |
Historically and in modern times, Short-tailed Albatrosses frequently follow commercial fishing and whaling vessels. They scavenge bite-sized scraps, seafood processing waste, and discarded offal. This opportunistic habit provides a high-calorie food source but also introduces significant survival risks.
Breeding
The reproductive cycle of the Short-tailed Albatross is an extended, high-investment process that requires months of coordination between both parents. The species is strictly monogamous, forming long-term pair bonds that often last for decades. They display exceptional site fidelity, returning to the exact same nesting territory year after year.
These birds are slow to mature. An individual will spend its first 4 to 6 years entirely at sea, wandering the North Pacific without ever touching land, before returning to its natal colony as a subadult to practice courtship dances. They rarely make their first breeding attempt until they reach 8 or 9 years of age.
| Breeding Stage | Calendar Timing / Period | Duration & Key Characteristics |
| Colony Arrival | Early October | Adults reclaim old territories; intense courtship dancing |
| Egg Laying Peak | Late October to November | Female deposits a single, massive white egg; no replacement if lost |
| Incubation Window | November to January | 64 to 65 days total; shared shifts lasting 10 to 14 days |
| Hatching & Guarding | Late December to January | Chick brooded continuously for first 14 to 18 days of life |
| Chick Rearing Phase | February to May | Parents forage simultaneously, returning to deliver rich stomach oil |
| Fledging Period | Late May to mid-June | Fledgling runs into the surf and flies away; completely independent |
The single egg represents a massive nutrient investment for the female, accounting for roughly 10% of her total body mass. Incubation duties are shared equally by both parents, who alternate long shifts lasting up to two weeks continuously without food or water while their partner travels hundreds of miles out to sea to forage.
Once the chick hatches, it grows rapidly on a diet of highly concentrated, lipid-rich stomach oil manufactured in the parents’ digestive tracts from digested marine prey. By June, the chick sheds its downy gray fluff, grows its dark juvenile flight feathers, and leaves the colony independently, flying straight to the North Pacific.
Threats
The threats faced by the Short-tailed Albatross are highly asymmetric. While they are exceptionally resilient and long-lived at sea, their reproduction is vulnerable due to their restricted breeding geography.
The core threat to the species is habitat instability. Because over 90% of the world’s population nests on the slopes of Torishima Island—an active volcano that erupted violently in 1902, 1939, and 2002—a single catastrophic eruption, landslide, or typhoon during the nesting season could cause severe reproductive failure and threaten the entire species.
| Threat Category | Severity Matrix | Target Cohort | Primary Biological Damage Mechanism |
| Volcanic / Landslides | High | Core Nesting Colonies | Eruptions or ash slides burying active nests and altering slopes |
| Commercial Line Bycatch | Moderate to High | Foraging Adults | Birds dive for baited longline hooks, get hooked, and drown |
| Marine Plastic Ingestion | Moderate to High | Developing Chicks | Ingested floating plastic fragments cause blockages and starvation |
| Invasive Predators | Low to Moderate | Eggs and Chicks | Introduced feral cats or rodents preying on unattended nests |
At sea, commercial longline fishing operations pose a persistent threat. As fishing vessels deploy long lines with thousands of baited hooks, albatrosses dive for the bait, become hooked, and are dragged underwater to drown.
Fortunately, the mandatory deployment of bird-scaring streamer lines, weighted hooks, and night-setting protocols on US and Japanese fleets has dramatically reduced bycatch rates over the past two decades. Marine pollution remains an ongoing problem; adults frequently surface-seize floating plastic pieces, mistaking them for squid or flying fish eggs, and regurgitate these indigestible items into their chicks’ stomachs, which can lead to accidental blockages and starvation.
Migration
The migratory movements of the Short-tailed Albatross do not match the linear pathways seen in land birds. Instead, their non-breeding behavior is highly dispersive, wandering across vast swathes of the ocean to track shifting current systems and high-latitude marine productivity.
Once the breeding season concludes in June, the colonies clear out completely. The adults and newly independent fledglings travel rapidly northward, catching prevailing winds to reach the rich subarctic waters of the North Pacific.
| Population Cohort | Wintering / Non-Breeding Destination | Core Marine Features | Latitude Range |
| Breeding Adults (Summer) | Aleutian Islands, Bering Sea, Gulf of Alaska | Deep shelf edges, upwelling passes | 50° N to 65° N |
| Juveniles & Subadults | West Coast US (WA, OR, CA), Baja | Continental slopes, canyons | 30° N to 50° N |
| Global Population (Winter) | Coastal Japan to East China Sea | Breeding island corridors, shelves | 25° N to 35° N |
During the summer and autumn months, adults concentrate heavily in the high-latitude waters of Alaska, tracking important marine hotspots like Ingenstrem Rocks, Seguam Pass, and the margins of Zhemchug and Pervenets canyons. Concurrently, younger juveniles and subadults undertake much wider coastal journeys. These younger birds frequently range south along the Pacific Northwest coast into California waters, remaining offshore over deep marine canyons where deep-sea upwellings provide a steady food supply, before heading back across the Pacific as the autumn nesting urge begins.
Unique Adaptations and Conservation Success
The ability of the Short-tailed Albatross to thrive in some of the most remote marine environments on Earth is supported by a suite of unique physiological adaptations. Like all procellariiforms, they feature large, internal supraorbital salt glands located inside depressions on the skull directly above the eyes. These glands act as biological desalination plants, extracting excess sodium chloride directly from the bloodstream and excreting it as a highly concentrated fluid through their tubular nostrils. This mechanism allows the birds to meet their complete hydration needs entirely by drinking sea water.
Their stomach oil production is another critical evolutionary strategy. This lipid-rich fluid serves as an energy-dense food source for their chicks and acts as an effective defensive weapon. If cornered by a potential predator, an adult or chick can accurately eject a stream of this sticky, foul-smelling oil, which ruins the insulation and waterproofing properties of an attacking animal’s feathers.
On the conservation front, the recovery of this species stands as an impressive success story for international collaboration. Recognizing the extreme vulnerability of having the entire population nested on an active volcano, a joint team from the Yamashina Institute for Ornithology, the Ministry of the Environment of Japan, and the United States Fish and Wildlife Service launched an aggressive translocation project.
| Active Conservation Project | Managing Entities | Core Strategy | Measurable Objective |
| Mukojima Translocation | Yamashina Institute / USFWS | Hand-rearing translocated chicks on a non-volcanic island | Establishing a safe, secondary breeding colony in the Bonin Islands |
| Hatsunezaki Colony Prep | Japanese Environmental Ministry | Deploying plastic decoys and audio playback systems | Luring nesting pairs away from unstable, landslide-prone volcanic slopes |
| Alaskan Bycatch Mitigation | NOAA / Sea Grant Alaska | Mandatory deployment of bird-scaring streamer lines | Reducing accidental longline drowning by over 90% in US waters |
Between 2008 and 2012, researchers translocated dozens of young chicks from Torishima to Mukojima, a safe, non-volcanic island in the Ogasawara chain. Using hand-rearing protocols and decoys with audio playback systems, conservationists successfully enticed returning adults to nest on the new island, establishing a safe secondary colony.
Concurrently, on Midway Atoll within the Northwestern Hawaiian Islands, a wild pair named George and Geraldine has successfully returned for nine consecutive breeding seasons, marking the first documented Short-tailed Albatross nesting success outside of Japan in modern history. Through these combined land and sea management efforts, researchers are securing the unique habitats of this pelagic specialist, ensuring its impressive high-arcing flights will continue to cross the North Pacific for generations to come.
Cultural Significance
The Short-tailed Albatross holds a deep place in the maritime history and folklore of the North Pacific. In Japan, the bird was historically known as Aho-dori, which translates directly to “fool-bird.” This name did not reflect the bird’s intelligence at sea, but rather its complete lack of evolutionary fear on land. Because they evolved on isolated islands without terrestrial mammalian predators, they would not flee when approached by humans, allowing early feather hunters to walk directly into the colonies and slaughter thousands of birds with clubs—a tragic vulnerability that nearly cost the species its existence.
Conversely, for indigenous coastal communities across western North America, from the Aleut of Alaska to the Makah of Washington and the Chumash of California, the albatross was viewed with deep respect as a powerful ocean navigator. Archaeologists excavating ancient coastal middens have uncovered substantial quantities of Short-tailed Albatross bones, indicating that these birds were historically common near nearshore waters. Their long, hollow wing bones were prized for fashioning high-grade tools, awls, and ceremonial flutes, while their presence close to land was read by tribal fishers as a reliable indicator of approaching storms or shifting schools of marine fish.
Today, the “fool-bird” label has been completely replaced by a modern identity as a global symbol of international marine conservation. The inspiring sight of thousands of golden-hooded adults returning to reclaim the volcanic slopes of Torishima serves as a living testament to what can be achieved when nations collaborate to protect our shared oceans.