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Eider

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Eiders are a group of large seaducks within the genus Somateria. These birds are most famous for their incredibly soft feathers. This material is known as eiderdown. People use this down to fill warm pillows and quilts. The common eider is the specific bird that provides true eiderdown. These birds are important to both nature and human traditions. They live in the cooler latitudes of the Northern Hemisphere.

The process of obtaining eiderdown involves a unique relationship between humans and birds. In places like Iceland, traditional farms cultivate these seabirds. Farmers work alongside the birds to collect the soft down. Once the down is collected, the farmers must clean it carefully. This cleaned material is then prepared for sale. This method allows humans to use the down while maintaining a connection to the birds.

There are currently three extant species within the genus Somateria. This means there are three species living in the world today. It is important to note that Steller's eider is not part of this group. Even though its name sounds similar, it belongs to a different genus. Scientists also know about two species that are no longer alive. These are known only from the fossil record. One fossil was found in Middle Oligocene rocks in Kazakhstan. Another was found at the Lee Creek Mine in the United States. This second fossil dates to the Late Miocene or Early Pliocene.

The scientific classification of these birds has a long history. In 1819, an English zoologist named William Leach introduced the genus Somateria. He included this classification in an appendix to a book. The book was written by John Ross about his voyage to find the Northwest Passage. The name Somateria itself has deep roots in language. It comes from two Ancient Greek words. The first part, "somat-", means "body." The second part means "wool." Together, the name refers to the bird's wool-like down.

Eiders face many dangers from predators in the wild. Because they are ground-nesting birds, they are vulnerable to hunters. In Iceland, the American mink is a major threat. The mink is an invasive species, meaning it is not native to that area. This predator has caused a massive drop in production. It has cut eider down production by more than half. The Arctic fox is another predator that hunts these birds.

These birds also hold a place in human culture and folklore. In parts of Great Britain, they have a special name. Since the 12th century, the black-and-white common eider has been called Saint Cuthbert's ducks. Beyond folklore, eiders have even been part of modern protests. In 1961, a protest called the Barrow Duck-In took place in Alaska. This happened because many eider ducks were shot out-of-season. People used this event to protest against game preservation laws.

Understanding eiders helps us learn about many different systems. We can study how invasive species like the American mink change an environment. We can also see how humans and wildlife interact through traditional farming. The fossil record of eiders tells us about how bird groups change over millions of years. From the Middle Oligocene to the present day, these birds have a long story. Their history connects biology, history, and even local traditions.

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