Balearic shearwater

Skim so close to the water that they look like they’re slicing the air right above the waves

Muchaxo


Balearic shearwater

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Skim so close to the water that they look like they’re slicing the air right above the waves

Population 25,000
>90% decline in three generations

A small, swift seabird with a big personality and an even bigger travel map. It breeds mainly on the Balearic Islands in the western Mediterranean, but once the nesting season is over, it heads out like a seasoned traveler, following coastlines and currents to find food. In flight, it looks athletic and purposeful: long, narrow wings, quick beats, then low glides just above the waves. It gets its name from the way it “shears” across the sea surface, skimming so close that it seems to be slicing the air right where ocean and wind meet. Its plumage is mostly brown above with paler underparts, a practical outfit that blends with sunlit water and shadowy swells.

While lots of seabirds have many nesting islands to choose from, this species is much more limited, returning to specific coastal caves and crevices to raise chicks. It is also famously more active at night around its nesting sites, slipping in under darkness to avoid danger. That secretive routine can make it feel like a “hidden” bird—present, but easy to miss unless you know when and where to look. Even at sea, it can seem surprisingly subtle until you see a group feeding, when the water suddenly comes alive with fast, low flight and sharp turns.

Out on the open water, the Balearic shearwater is a skilled forager with a knack for being in the right place at the right time. It feeds mainly on small fish and other sea life near the surface, often gathering where currents concentrate food or where other ocean hunters push prey upward. You might spot it flying in loose lines, circling, then dropping to the water in quick bursts, as if following an invisible set of clues. Its body is built for stamina rather than show: streamlined, efficient, and perfectly suited to long hours of searching.

Distribution

Country
Population est.
Status
Year
Comments
Albania
2018
Seasonality Uncertain
Algeria
2018
Breeding
Belgium
2018
Vagrant
Bosnia And Herz.
2018
Seasonality Uncertain
Croatia
2018
Seasonality Uncertain
Denmark
2018
Vagrant
Faroe Islands
2018
Seasonality Uncertain
France
2018
Germany
2018
Vagrant
Gibraltar
2018
Non-Breeding
Greece
2018
Seasonality Uncertain
Ireland
2018
Israel
2018
Vagrant
Italy
2018
Libya
2018
Seasonality Uncertain
Malta
2018
Seasonality Uncertain
Monaco
2018
Seasonality Uncertain
Montenegro
2018
Seasonality Uncertain
Morocco
2018
Breeding
Netherlands
2018
Vagrant
Norway
2018
Vagrant
Poland
2018
Vagrant
Portugal
2018
Slovenia
2018
Seasonality Uncertain
Spain
2018
Sweden
2018
Vagrant
Tunisia
2018
Vagrant
United Kingdom
2018

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Terrestrial / Aquatic

Altricial / Precocial

Polygamous / Monogamous

Dimorphic (size) / Monomorphic

Active: Diurnal / Nocturnal

Social behavior: Solitary / Pack / Colony

Diet: Carnivore / Herbivore / Omnivore / Piscivorous / Insectivore

Migratory: Yes / No

Domesticated: Yes / No

Dangerous: Yes / No