Common loon

They melt ice with their bodies (sort of)

Eric Ellingson


Common loon

EXEWCRENVUNTLCDDNE

They melt ice with their bodies (sort of)

Population

Often affectionately called the Canadian Loon because its iconic silhouette graces Canada’s one-dollar coin (the “loonie”), it is the undisputed symbol of the northern wilderness. It isn’t a duck or a gull; loons belong to an entirely separate, ancient lineage of waterbirds. In the summer, they dress in a striking, geometric wardrobe: a velvet-black head, a sharply striped black-and-white collar, and a back patterned like a checkerboard. But their most mesmerizing physical feature is their piercing, ruby-red eyes, which glow like embers against their dark feathers.

What technically separates loons from ducks and most other waterbirds is their skeletal density. Most birds have hollow bones to help them fly, but a loon’s bones are heavy and solid, acting like a scuba diver’s weight belt. This extra weight allows them to compress their plumage, squeeze out trapped air, and sink quietly beneath the water’s surface without a splash. They are elite underwater submarine-hunters, capable of diving up to 656 meters (200 feet) deep and staying submerged for minutes at a time as they chase down fish with terrifying speed and precision.

However, this incredible underwater specialization comes with a massive evolutionary trade-off: they are nearly helpless on land. A loon’s legs are set incredibly far back on its body—perfect for acting as powerful twin propellers in the water, but disastrous for walking. On land, they cannot stand upright; they can only awkwardly shove themselves forward on their bellies. Because of this, they only leave the water to nest, building their homes right at the water’s edge so they can slide directly back to safety.

Distribution

Country
Population est.
Status
Year
Comments
Albania
2018
Vagrant
Algeria
2018
Vagrant
Austria
2018
Non-Breeding
Bahamas
2018
Seasonality Uncertain
Belgium
2018
Non-Breeding
Bermuda
2018
Vagrant
Bulgaria
2018
Non-Breeding
Canada
2018
Croatia
2018
Vagrant
Cuba
2018
Non-Breeding
Czechia
2018
Non-Breeding
Denmark
2018
Passage
Estonia
2018
Vagrant
Faroe Islands
2018
Non-Breeding
Finland
2018
Vagrant
France
2018
Germany
2018
Origin Uncertain
Gibraltar
2018
Vagrant
Greece
2018
Vagrant
Greenland
2018
Hungary
2018
Vagrant
Iceland
2018
Ireland
2018
Non-Breeding
Italy
2018
Non-Breeding
Lithuania
2018
Vagrant
Luxembourg
2018
Vagrant
Mexico
2018
Montenegro
2018
Seasonality Uncertain
Morocco
2018
Vagrant
Netherlands
2018
Non-Breeding
Norway
2018
Poland
2018
Vagrant
Portugal
2018
Non-Breeding
Romania
2018
Non-Breeding
Russia
2018
Vagrant: Eastern Asian Russia
Saint Pierre
2018
Serbia
2018
Seasonality Uncertain
Slovakia
2018
Non-Breeding
Slovenia
2018
Non-Breeding
Spain
2018
Svalbard
2018
Breeding
Sweden
2018
Non-Breeding
Switzerland
2018
Non-Breeding
Turkey
2018
Vagrant
Ukraine
2018
Non-Breeding
United Kingdom
2018
Non-Breeding
United States
2018
Breeding

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Terrestrial / Aquatic

Altricial / Precocial

Polygamous / Monogamous

Dimorphic (size) / Monomorphic

Active: Diurnal / Nocturnal

Social behavior: Solitary / Pack / Flock

Diet: Carnivore / Herbivore / Omnivore / Piscivorous / Insectivore

Migratory: Yes / No

Domesticated: Yes / No

Dangerous: Yes / No