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Loon

life science Maturity 7-9 Next article →

Loons are wonderful birds that live in water.

Gavia immer (Common Loon) 1APR2017
Gavia immer (Common Loon) 1APR2017

You can find them in North America and northern Eurasia. These birds belong to the genus Gavia. They are part of the Gaviidae family. Loons are about the size of large ducks or small geese. They have webbed toes to help them swim. Their bellies stay under the water when they float. This makes them look different from ducks or geese.

Loons use many clever ways to survive. They are excellent swimmers because their feet are far back on their bodies. This helps them push through the water. However, it makes walking on land a very hard job. Most loons must run across the water to take flight. Only the red-throated loon can take off from land.

Red-throated Loon (Gavia stellata) - Summer plumage breeding adult2
Red-throated Loon (Gavia stellata) - Summer plumage breeding adult2

When they migrate to the ocean, they use special salt glands. These glands sit right above their eyes. They filter salt out of the blood. This lets the loon drink saltwater and eat ocean fish.

PacificLoon24
PacificLoon24

Learning about loons involves looking at their history. Scientists have studied their names for a long time. The name "diver" comes from how they plunge into water. The name "loon" might come from old words for being clumsy. This is because they are not good at walking. In 1758, Carl Linnaeus described a species in his work. He used the name Colymbus for birds like these. Later, the name Gavia became the official name for the genus.

Gavia arctica EM1B1934 (48009481846)
Gavia arctica EM1B1934 (48009481846)

There are many interesting facts about loon life. A loon can live for as long as 30 years. They can hold their breath for 90 seconds underwater. Loons eat fish, frogs, and even snails. They swallow small pebbles called gastroliths to help digestion. These stones help the gizzard crush hard shells.

Yellow-billed Loon Chipp South 8-12-13 Ryan Askren
Yellow-billed Loon Chipp South 8-12-13 Ryan Askren

In 2020, a loon hatched in Fall River, Massachusetts. This was the first time one hatched there in over a century. This happened after chicks were moved there in 2015.

Loons are connected to many things you might see. They build nests using mud, grass, and moss. They often build these nests on islands in lakes. This keeps the eggs safe from land animals. You might see them swimming in clear lakes. They like clear water because it helps them see fish. Watching a loon swim is like watching a master of the water. They are perfectly built for their watery homes.

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🖼️ Images & Media (7)
Loons Swimming in Wood Lake BC on a...
File:Red-throated Loon (Gavia stellata) - Summer plumage breeding adult2.jpg
Red-throated Loon (Gavia stellata) -...
File:Gavia arctica EM1B1934 (48009481846).jpg
Gavia arctica EM1B1934 (48009481846).jpg
File:PacificLoon24.jpg
PacificLoon24.jpg
File:Gavia immer (Common Loon) 1APR2017.jpg
Gavia immer (Common Loon) 1APR2017.jpg
File:Yellow-billed Loon Chipp South 8-12-13 Ryan Askren.jpg
Yellow-billed Loon Chipp South 8-12-13...
File:Gavia fossil Vienna.jpg
Gavia fossil Vienna.jpg
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