Red-throated Loon

The Red-throated Loon (Gavia stellata) is a fascinating member of the Gaviidae family. While it is often compared to duck-like birds due to its aquatic nature and swimming ability, it is a specialized diver that occupies a distinct evolutionary niche in the northern hemisphere.

The Red-throated Loon is a medium-sized waterbird measuring between 53-69 cm in length. Its plumage is primarily grey, which provides effective camouflage in open water. Its most iconic feature, especially during the breeding season, is the distinct red patch located on the throat, which gives the species its common name.

These birds are circumpolar breeders, typically found in the arctic tundra. They prefer nesting near small, freshwater ponds and lakes. During the winter months, they migrate to coastal marine environments, where they are frequently seen in sheltered bays and estuaries.

As an expert diver, the Red-throated Loon feeds primarily on fish. Their diet includes:

• Small fish such as sand eels and herring
• Crustaceans
• Aquatic insects during the breeding season
• Occasional mollusks

Red-throated Loons are monogamous and often return to the same nesting site annually. They build simple nests out of mud and vegetation right at the water's edge, allowing for a quick escape into the water if predators approach.

Unlike other loons, the Red-throated Loon is capable of taking flight directly from the water without a long running start. They are known for their haunting, wailing calls that echo across the arctic landscape during the breeding season.

The Red-throated Loon is currently listed as Least Concern by the IUCN. However, they remain vulnerable to habitat loss, oil spills, and human disturbance in their breeding grounds.

1. They are the smallest and most widely distributed of all loon species.
2. Unlike many other waterbirds, they can take off from land if necessary.
3. They often commute long distances from their small nesting ponds to the ocean to catch fish for their chicks.
4. Their red throat patch is only visible during the summer breeding season.

To spot a Red-throated Loon, bring high-quality binoculars or a spotting scope to scan coastal areas during winter. Look for their characteristic 'upturned' bill profile, which is a key identification mark even when the red throat is not visible.

The Red-throated Loon is a remarkable example of arctic adaptation. Whether you are a casual observer or a dedicated ornithologist, observing this graceful diver is a highlight of any birding trip in northern latitudes.