Snowy Albatross

Diomedea exulans holds the distinction of having the largest wingspan of any living bird, exceeding three metres, which enables it to glide for hours over open ocean with minimal energy expenditure. Adults display predominantly white plumage that whitens further with age, contrasting with black wingtips and a pink bill. These birds are highly pelagic, spending most of their lives in flight over the Southern Ocean and returning to land only to breed.

As apex scavengers and predators of squid, fish, and carrion, they play a role in nutrient cycling within marine ecosystems and serve as indicators of ocean health.

The species ranges widely across the Southern Ocean, with breeding colonies on subantarctic islands associated with South Africa and Australia. It occupies marine oceanic and neritic habitats, foraging across vast distances from its nesting sites.

Population decline stems from several ongoing pressures. Longline and trawl fisheries pose a major threat, as birds are drawn to bait and discarded catch, resulting in accidental hooking and drowning. Invasive species introduced to breeding islands, including rodents and feral cats, prey on eggs and chicks.

Ingestion of marine debris and plastic waste affects adult and juvenile health. Habitat alteration from changing environmental conditions on breeding islands further compounds these pressures.

Conservation efforts include mitigation measures on fishing vessels, such as bird-scaring lines, weighted lines, and night-setting to reduce bycatch, alongside international agreements like the Agreement on the Conservation of Albatrosses and Petrels. Invasive predator eradication programs have been implemented on some breeding islands.

Despite these interventions, the population trend remains decreasing, and the species' long lifespan and slow reproductive rate make recovery a gradual process contingent on sustained bycatch reduction and habitat protection.