Golden eagles are one of the largest birds of prey in North America, with a wingspan that can reach up to 86 inches (220 cm) and a body length of up to 33.1 inches (84 cm). Their weight, however, can vary significantly depending on various factors.
The Exact Golden Eagle Weight
The average weight of a female golden eagle ranges from 7.9 to 14.5 pounds (3.6 to 6.6 kg), while the average weight for males is between 6.2 to 9.9 pounds (2.8 to 4.5 kg). The heaviest recorded female golden eagle weighed 17 pounds (7.7 kg).
Factors Affecting Golden Eagle Weight
Several factors can influence the weight of a golden eagle, including:
Sex
As mentioned earlier, female golden eagles are generally larger and heavier than their male counterparts. This size difference is believed to be an adaptation that allows the larger females to better defend their nests and provide for their young.
Age
The weight of a golden eagle can also vary depending on its age. Younger eagles may weigh less than their older counterparts, as they continue to grow and develop.
Subspecies
There are several recognized subspecies of the golden eagle, and their weights may differ slightly based on their geographic location and adaptations to their specific environments.
Seasonal Variations
Golden eagles may weigh more during certain times of the year, such as the breeding season, when they need to build up fat reserves to sustain themselves and their young.
Health and Nutrition
The overall health and nutrition of a golden eagle can also impact its weight. Eagles that are well-fed and in good physical condition will typically weigh more than those that are sick or malnourished.
Geographical Variations in Golden Eagle Weight
The weight of golden eagles can also vary depending on their geographic location. For example, in Alaska, the average weight for golden eagles is reported to be between 8-12 lbs (3.6-5.4 kg).
Lifespan and Threats to Golden Eagles
Golden eagles have a relatively long lifespan, with the oldest recorded individual living for at least 31 years and 8 months in Utah. However, their population faces various threats, primarily due to human activity, including:
- Collisions with vehicles, wind turbines, and other structures
- Electrocution at power poles
- Habitat loss
- Lead poisoning from ammunition in hunter-shot prey
These threats can have a significant impact on the overall health and population of golden eagles.
Conclusion
The golden eagle is a truly impressive bird of prey, with a wide range of weights that can vary based on a variety of factors. Understanding the specific details and unique characteristics of the golden eagle’s weight is crucial for conservation efforts and ensuring the continued survival of this majestic species.
