8 Types of Eagles in Alaska

The two species differ dramatically in appearance. Bald eagles have a white head and neck that contrasts sharply with a dark brown body and wings; the white plumage develops fully only after four to five years. Golden eagles lack any white and instead are uniformly dark brown to golden-brown across the entire body, head, and wings, with subtle golden highlights on the nape and crown. Bald eagles are slightly larger on average, with wingspans reaching 7 feet or more, while golden eagles span 6 to 7.5 feet. Bald eagles have a larger, heavier head and a stout yellow beak. Golden eagles have a smaller, more refined head and a powerful hooked beak that appears proportionally smaller. In flight, bald eagles hold their wings flat and level, while golden eagles often dip their wings slightly or hold them in a shallow V. Young bald eagles in their dark plumage can be confused with golden eagles, but bald eagles always have white patches emerging on the head, neck, or leg feathers by their second year.

Two species are regular residents: the bald eagle and the golden eagle. The bald eagle is the dominant and widespread species, found from the coast to mountain valleys, especially near salmon rivers, streams, and coastal cliffs. The golden eagle is resident year-round but in much lower numbers and concentrated in interior and northern open terrain. A third species, the white-tailed eagle, has been recorded in Alaska on rare occasions, primarily in western coastal areas and the Aleutian Islands. White-tailed eagles are Asian vagrants and extremely uncommon. For practical purposes, expect to see only bald and golden eagles on any Alaska trip.

Bald eagles concentrate heavily near water and salmon habitat. They are abundant in southeast Alaska, especially the Inside Passage, Chilkat Valley, and Tongass National Forest. They concentrate around major river systems like the Kenai River, the Copper River, and spawning streams throughout the state during salmon runs. Coastal cliffs, islands, and estuaries are prime bald eagle habitat from spring through fall. Golden eagles prefer interior open country and mountains. Look for them in Denali National Park, the Brooks Range, high plateaus of central Alaska, and ridge lines with tundra or sparse vegetation. Golden eagles hunt small mammals like ground squirrels and arctic hares, so they favor terrain where visibility is high and prey is active. Bald eagles stay close to water; golden eagles prefer open terrain far from heavy forest.

The bald eagle is overwhelmingly more common. Verified iNaturalist observations show 6,631 bald eagle sightings across Alaska compared to only 220 for the golden eagle. This 30-to-1 ratio reflects habitat preferences and population sizes. Bald eagles benefit from Alaska's massive salmon runs and abundant fish, which sustain large breeding populations. Golden eagles are present but remain thinly distributed across interior and northern regions. If you see an eagle in Alaska, it is statistically far more likely to be a bald eagle, especially if you are anywhere near water, rivers, or coastal areas.

Young bald eagles lack the white head and can fool even experienced observers. Immature bald eagles are dark brown overall, similar in coloration to golden eagles, but several field marks distinguish them. Young bald eagles have a heavier head, a larger pale eye, and a thicker, sturdier beak than golden eagles of similar age. The eye ring and orbital area on young bald eagles appear pale and prominent. By the second year, white feathers begin appearing on the head, neck, upper breast, and leg feathers, creating a mottled or blotchy look. This transition takes several years to complete. Golden eagles remain uniform dark brown throughout their lives and lack any emerging white. If you spot a dark eagle with white patches appearing anywhere on the head, neck, or body, it is a young bald eagle. If it remains uniformly dark brown, it is likely a golden eagle.

Flight silhouette and wing carriage differ noticeably. Bald eagles typically hold their wings flat and level, creating a straight-across profile in soaring flight. Their head projection is large and prominent, appearing like a protruding platform ahead of the wings. Bald eagles flap more slowly and heavily than golden eagles. Golden eagles hold their wings in a shallow dihedral, or V-shape, especially when thermaling or rising on warm air currents. Their head projects less noticeably, and their wing beat is faster and more buoyant. Golden eagles appear more agile and nimble in the air. Bald eagles look heavier and more ponderous. In direct comparison, a bald eagle soaring overhead appears to have broader, more rectangular wings and a deeper, heavier body, while a golden eagle looks sleeker and more pointy-winged.

Bald eagles are year-round residents in many parts of Alaska, but sightings peak during June, July, and August when salmon runs are active and food is abundant. Numbers can be extraordinarily high in July and August along major rivers and spawning streams. Some populations migrate south in winter, so northern and interior bald eagles may depart, but coastal populations and birds near open water often remain. Golden eagles are also year-round but less visible in winter due to lower activity and sparse coverage in remote terrain. Peak sightings for golden eagles occur during the open season from late May through September when ground squirrels and other prey are active and birds are more mobile. Late spring and early summer are the most reliable times to encounter golden eagles in interior Alaska.

White-tailed eagles are extremely rare vagrants to Alaska and should not be expected. This Asian species breeds in coastal areas of far eastern Russia and occasionally wanders across the Bering Strait during migration or winter dispersal. Verified records in Alaska number only a handful, primarily from the western Aleutian Islands and Pribilof Islands. White-tailed eagles superficially resemble bald eagles but have a smaller, wedge-shaped white tail and dark brown plumage without the sharp white head contrast of adult bald eagles. Unless you are conducting specialized seabird surveys in the remotest western islands, you will not encounter a white-tailed eagle in Alaska.

Close views reveal several subtle but reliable marks. Adult bald eagles show a deep yellow eye, yellow cere and beak, and bright yellow feet with powerful talons. The body feathering is uniformly dark brown to blackish with sharp white head and neck contrast. Golden eagles have a dark brown eye, dark cere, and a powerful blackish beak. Their plumage is uniformly dark brown with subtle golden feathering on the nape and crown that is hard to see at distance but visible in good light at close range. Golden eagle legs and feet are feathered all the way to the toes, while bald eagle legs are bare yellow in the lower portion. This bare yellow leg is a reliable mark on perched bald eagles. The eye color also differs: bald eagles have a pale or yellow eye regardless of age, while golden eagles maintain a dark eye throughout their lives.