Steller’s sea eagle (Haliaeetus pelagicus) is one of the largest raptors in the world, with a wingspan that can reach over 8 feet. These impressive birds are native to the far eastern regions of Russia, the Korean peninsula, and northern Japan, and are known for their incredible long-distance flights and powerful hunting abilities.
The Exact Wingspan of Steller’s Sea Eagles
The wingspan of Steller’s sea eagles is truly remarkable, with a median of 2.13 m (7 ft 0 in) according to Ferguson-Lees (2001) or a median of 2.2 m (7 ft 3 in) according to Saito (2009). However, the absolute maximum wingspan of these birds is less certain, with many sources placing it at up to 2.45 m (8 ft 2 in). There are also unverified claims of Steller’s sea eagles with wingspans up to 2.8 m (9 ft 2 in), though these larger measurements have not been widely confirmed.
Unique Physical Characteristics
Image source: stellers sea eagle
Steller’s sea eagles are unique among all sea eagles in several ways. They have a yellow beak even in juvenile birds, and possess 14 rectrices (tail feathers), rather than the more common 12 found in other species. Additionally, they have a relatively short tarsus (the part of the leg between the foot and the knee) and tail compared to other very large eagles.
| Characteristic | Measurement |
|---|---|
| Tarsus | 95-100 mm (3.7-3.9 in) |
| Tail | 320-390 mm (13-15 in) |
In comparison, the Philippine eagle surpasses the Steller’s sea eagle in tarsus and tail length by up to 40 mm (1.6 in) and 110 mm (4.3 in), respectively.
The Impressive Size and Power of Steller’s Sea Eagles
The Steller’s sea eagle’s wingspan is one of the largest of any living eagle, and its massive size and power make it a formidable bird of prey. These eagles are known for their incredible hunting abilities, using their powerful talons and sharp beaks to capture a variety of prey, including fish, small mammals, and even other birds.
Despite their impressive size and strength, Steller’s sea eagles are a vulnerable species, with only about 4,000 individuals left in the wild. This is due to a variety of factors, including habitat loss, hunting, and the effects of climate change.
Long-Distance Flights and Migration Patterns
One of the most remarkable aspects of Steller’s sea eagles is their incredible long-distance flights. These birds are known to undertake extensive migrations, with some individuals having been tracked across North America since they were first spotted more than a year ago.
The ability of Steller’s sea eagles to cover such vast distances is a testament to their impressive physical capabilities, including their massive wingspan and powerful flight muscles. These birds are able to soar effortlessly for hours on end, using their keen eyesight to spot prey from great distances.
Conservation Efforts and Challenges
Despite their impressive size and power, Steller’s sea eagles face a number of threats to their survival. Habitat loss, hunting, and the effects of climate change have all contributed to the decline of this species, with only around 4,000 individuals remaining in the wild.
Conservation efforts are underway to protect Steller’s sea eagles and their habitats, but these efforts face a number of challenges. Poaching and illegal hunting remain significant threats, and the remote and rugged nature of the eagles’ natural habitat can make it difficult to monitor and protect.
Overall, the Steller’s sea eagle is a truly remarkable bird, with a wingspan that is among the largest of any living eagle. These impressive birds are a testament to the incredible diversity and adaptability of the natural world, and their conservation is a critical priority for scientists and conservationists around the world.
References:
– Wikipedia – Steller’s Sea Eagle
– Audubon – Inside the Amazing Cross-Continent Saga of a Steller’s Sea Eagle
– SD Dakota Birds – Steller’s Sea Eagle Info
– The New York Times – A Steller’s Sea Eagle Spotted in North America Captivates Birders
– San Diego Zoo – Steller’s Sea Eagle
