Manx shearwater

Impressive flights but clumsy walking on the ground are observed in these birds due to awkward legs

Richard Crossley


Manx shearwater

EXEWCRENVUNTLCDDNE

Impressive flights but clumsy walking on the ground are observed in these birds due to awkward legs

Population 1,700,000

The Manx shearwater is a remarkable seabird known for its extraordinary long-distance migrations and graceful flight over the open ocean. With its sleek, torpedo-shaped body and long, slender wings, the Manx shearwater is perfectly adapted to life at sea.

Named after the Isle of Man, where it was first scientifically described, this seabird breeds in large colonies on remote islands and cliffs along the coasts of the North Atlantic. During the breeding season, these colonies come alive with the sounds of their distinctive calls and the sight of thousands of birds wheeling and soaring overhead.

One of the most fascinating aspects of the Manx shearwater’s biology is its remarkable migration. After breeding, individuals embark on an incredible journey southward, traveling thousands of miles across the Atlantic Ocean to wintering grounds off the coast of South America. This migration is one of the longest recorded for any bird species, with some individuals traveling over 12,000 kilometers (7,500 miles) in search of food.

To fuel their epic journey, Manx shearwaters rely on a diet of fish, squid, and crustaceans, which they catch by plunge-diving into the ocean from great heights. Their streamlined bodies and powerful wings enable them to dive with precision and agility, allowing them to capture prey with remarkable efficiency.

During the non-breeding season, Manx shearwaters spend the majority of their time at sea, often far from land. They are highly adapted to life on the open ocean, with specialized salt glands that allow them to excrete excess salt from their bodies and a keen sense of smell that helps them locate food over vast distances.

Distribution

Country
Population est.
Status
Year
Comments
Angola
2018
Vagrant
Argentina
2018
Australia
2018
Vagrant
Austria
2018
Vagrant
Barbados
2018
Seasonality Uncertain
Belgium
2018
Vagrant
Belize
2018
Vagrant
Bermuda
2018
Brazil
2018
Canada
2018
Breeding
Cape Verde
2018
Vagrant
Chile
2018
Costa Rica
2018
Vagrant
Cuba
2018
Vagrant
Côte D’ivoire
2018
Vagrant
Denmark
2018
Passage
Dominican Republic
2018
Vagrant
Falkland Islands
2018
Malvinas
Faroe Islands
2018
Breeding
France
2018
French Guiana
2018
Gambia
2018
Seasonality Uncertain
Germany
2018
Vagrant
Ghana
2018
Vagrant
Greenland
2018
Vagrant
Guadeloupe
2018
Seasonality Uncertain
Guinea-Bissau
2018
Seasonality Uncertain
Guinea
2018
Seasonality Uncertain
Iceland
2018
Breeding
Ireland
2018
Breeding
Liberia
2018
Mauritania
2018
Vagrant
Morocco
2018
Namibia
2018
Netherlands
2018
New Zealand
2018
Vagrant
Nigeria
2018
Vagrant
Norway
2018
Breeding
Panama
2018
Non-Breeding
Portugal
2018
Puerto Rico
2018
Saint Helena
2018
Seasonality Uncertain
Saint Pierre
2018
Passage
Saint Vincent
2018
Vagrant
Senegal
2018
Sierra Leone
2018
Seasonality Uncertain
South Africa
2018
South Georgia
2018
Spain
2018
Breeding: Canary Is.
Spain
2018
Seasonality Uncertain
Sweden
2018
Vagrant
Switzerland
2018
Vagrant
Trinidad & Tobago
2018
United Kingdom
2018
United States
2018
Breeding
Uruguay
2018
Non-Breeding
Venezuela
2018

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Terrestrial / Aquatic

Altricial / Precocial

Polygamous / Monogamous

Dimorphic (size) / Monomorphic

Active: Diurnal / Nocturnal

Social behavior: Solitary / Pack / Herd / Flock

Diet: Carnivore / Herbivore / Omnivore / Piscivorous / Insectivore

Migratory: Yes / No

Domesticated: Yes / No

Dangerous: Yes / No