White-Tailed Eagle Diet and Size: Feeding Habits, Predators, and Measurements
The White-Tailed Eagle (Haliaeetus albicilla), often called the “sea eagle,” is the UK’s largest bird of prey and represents one of Britain’s most remarkable conservation success stories. After becoming extinct in the UK during the early 20th century, these magnificent raptors have made a successful comeback through dedicated reintroduction efforts.
With their impressive wingspan and distinctive white tail, these birds command attention whether soaring over coastal waters or perched on rocky cliffs.
In this article, let’s have a closer look into their dietary habits, breeding patterns, physical characteristics, and conservation status in the UK.
Table of Contents
The Dietary Habits Of The White-Tailed Eagle
White-Tailed Eagles are versatile predators with adaptable feeding habits that vary seasonally and by location.
What Does A White-Tailed Eagle Eat?
White-Tailed Eagles are opportunistic hunters and scavengers, primarily feeding on fish, water birds, and small mammals. They catch fish by flying low over water, hovering momentarily, and snatching their prey from the surface with remarkable precision.
During the breeding season, they require 500-600g of food daily, while winter consumption drops to 200-300g per day. Their diet includes various birds, rabbits, and hares, and they sometimes pirate food from other birds and even otters.
Carrion forms a significant part of their diet, especially during winter months when other food sources are scarce. While they occasionally take lambs, most are consumed as carrion rather than actively hunted.
What To Feed A Baby White-Tailed Eagle?
Baby White-Tailed Eagles, called eaglets, are fed by both parents with small pieces of fish, birds, and mammals.
Parents tear the food into manageable portions suitable for their chicks’ size.
Breeding Habits Of White-Tailed Eagles
These magnificent birds have specific breeding patterns that contribute to their successful population recovery.
Do White-Tailed Eagles Mate For Life?
White-Tailed Eagles do mate for life, forming strong pair bonds that can last for many years. These pairs often return to the same nesting site year after year, building upon and refurbishing their existing nests.
Their breeding season typically begins in early spring, with eggs laid between March and April. The pairs engage in impressive aerial displays during courtship, and both parents share incubation duties and chick-rearing responsibilities.
The Size & Weight Of White-Tailed Eagles
As the UK’s largest bird of prey, White-Tailed Eagles are truly impressive in their dimensions.
How Much Does A White-Tailed Eagle Weigh?
Adult White-Tailed Eagles show notable sexual dimorphism in weight. Females are typically heavier, weighing between 4 to 7kg, while males weigh 3.5 to 5kg.
This size difference helps the pair occupy slightly different niches when hunting, allowing them to target a broader range of prey species.
How Big Is A White-Tailed Eagle?
White-Tailed Eagles measure between 70 to 90 cm in length and boast an impressive wingspan of 200 to 240 cm (2-2.4 metres), making them the UK’s largest bird of prey.
Their broad wings with distinctive “fingered” ends enable them to soar efficiently on thermal currents and maintain slow flight speeds when hunting over water.
Are White-Tailed Eagles Under Threat?
White-Tailed Eagles are currently Amber-listed in the UK Birds of Conservation Concern.
Globally, they are listed as Least Concern on the IUCN Red List, reflecting their successful recovery in many areas.
What Eats A White-Tailed Eagle?
Adult White-Tailed Eagles have few natural predators due to their size and position as apex predators. However, eggs and chicks can be vulnerable to predation from mammals like pine martens and foxes if nests are accessible.
The main threats to their survival come from human activities rather than natural predators, including habitat destruction, persecution, and accidental poisoning.
Where Can I See White-Tailed Eagles In The UK?
White-Tailed Eagles can be observed primarily along the western coast of Scotland and its islands. They prefer coastal areas and large bodies of water, including sea lochs and extensive wetlands.
The Isle of Mull is particularly renowned for its White-Tailed Eagle population, offering some of the best viewing opportunities in the UK. Other notable locations include the Isle of Skye and parts of the Western Isles.
These magnificent birds can be seen year-round, as UK populations are largely resident. However, younger birds may show some seasonal movement, particularly in winter months.
SEE ALSO: White-Tailed Eagle Life Cycle: Nest Building To Fledging (and everything in between)
Frequently Asked Questions
White-Tailed Eagles can reach speeds of up to 43 miles per hour (70 kilometres per hour) during normal flight, though they are built more for soaring efficiency than speed.
White-Tailed Eagles typically live between 20-25 years in the wild, though some individuals can reach up to 36 years under favourable conditions.
While not typically aggressive toward humans, White-Tailed Eagles can be fiercely territorial during the breeding season, particularly when defending their nesting sites.
White-Tailed Eagles are generally larger with broader wings and a white tail, preferring coastal habitats and a fish-based diet. Golden Eagles are slightly smaller, darker in colouration, and prefer upland areas where they hunt primarily land-based prey.
