The Procellariidae family: masters of the open ocean and long-distance navigation

Nature · Published 3 October 2026 Swipe more like this →

In short: Procellariidae are a diverse family of seabirds, ranging from giant petrels to tiny diving species. These accomplished long-distance foragers rely on specialized flight techniques and keen olfaction to navigate vast oceans. Despite their agility at sea, most are clumsy on land, forcing them to adopt unique colonial nesting strategies.

The family Procellariidae, part of the Procellariiformes order, comprises 99 species across 16 genera, including fulmars, shearwaters, prions, and gadfly petrels. These birds are defined by their tubular nasal passages, which provide a highly developed sense of smell used to locate prey and nesting sites across immense distances. While they vary significantly in size—from the giant petrel with a two-meter wingspan to the small diving petrel—they share a common morphology of long, stiff wings and a generally dull plumage of greys, blacks, and whites.

Flight efficiency is central to their survival. Because they possess high wing loading, these birds require high speeds to remain airborne, often utilizing dynamic soaring to glide across wave fronts. Many species are legendary migrants, crossing the equator annually to reach distant feeding grounds. Their navigational precision is remarkable; experiments have shown that displaced individuals can return to their home colonies from thousands of kilometers away with incredible speed. For instance, a Manx shearwater once returned to its Welsh colony from Boston in under two weeks.

Colonial breeding is the norm, though it presents significant challenges. Most procellariids have weak legs, making them vulnerable to predators on land. Consequently, many species nest in burrows or crevices, often attending their colonies only at night to avoid detection. They exhibit intense philopatry, frequently returning to the exact same burrow year after year. While some species are generalists that feed on fish, squid, and carrion, others have evolved specialized tools, such as the lamellae-lined bills of prions used to filter plankton, or the wing-propelled diving capabilities of shearwaters that allow them to hunt at depths exceeding 70 meters.

The taxonomy of this group has been refined by modern molecular phylogenetics. Studies have shifted the understanding of their evolutionary history, merging the diving petrels into the Procellariidae family and clarifying the relationships between various genera. This ongoing research highlights the complexity of their adaptation to diverse marine environments, from polar regions to tropical seas, cementing their status as one of the most successful and widespread groups of seabirds on the planet.

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