Crested eagles are a fascinating species of birds of prey, known for their distinctive crest and impressive hunting abilities. However, distinguishing between male and female crested eagles can be a bit of a challenge, especially for the untrained eye. In this blog post, we’ll explore the key differences between male and female crested eagles, helping you become an expert in identifying the gender of these majestic birds.
Size and Weight Differences
One of the most reliable ways to tell the difference between male and female crested eagles is by looking at their size and weight. On average, female crested eagles weigh a remarkable 27% more than their male counterparts. This difference in size is also evident in their tarsus length, with females having a larger tarsus length of 10.3 to 11.2 cm (4.1 to 4.4 inches) compared to males.
Behavioral Differences
Image source: Long-crested eagle By Charles J. Sharp
In addition to physical characteristics, the behavior of male and female crested eagles can also provide clues to their gender. Female crested eagles are known to be more diligent when it comes to sitting and feeding the chicks, as well as shielding them from harsh sun or rain. On the other hand, the male crested eagle tends to focus more on hunting and providing food for the family.
Identifying the Correct Species
It’s important to note that there are different species of eagles with “crested” in their name, such as the Long-crested Eagle and the Crested Serpent Eagle. These species have their own unique physical characteristics and behaviors, so it’s essential to correctly identify the species before attempting to differentiate between males and females.
Observing Plumage Differences
While size and weight are the most reliable indicators, there are also some subtle differences in the plumage of male and female crested eagles. Females tend to have a slightly darker and more uniform coloration, while males may have a slightly lighter and more mottled appearance. However, these plumage differences can be quite subtle and may not be as reliable as the size and weight differences.
Conclusion
Identifying the gender of crested eagles can be a fascinating and rewarding challenge for birdwatchers and nature enthusiasts. By focusing on the key differences in size, weight, and behavior, you can become an expert in distinguishing between male and female crested eagles. Remember to always double-check the species identification to ensure you’re making accurate observations. Happy eagle-watching!
References:
- Long-crested Eagle | The Peregrine Fund. (n.d.). Retrieved April 20, 2024, from https://peregrinefund.org/explore-raptors-species/eagles/long-crested-eagle
- Crested eagle – Wikipedia. (n.d.). Retrieved April 20, 2024, from https://en.wikipedia.org/wiki/Crested_eagle
- Crested Eagle: The Ultimate Guide – Operation Migration. (n.d.). Retrieved April 20, 2024, from https://operationmigration.org/crested-eagle-the-ultimate-guide/
- How to differentiate Male & Female Crested Serpent Eagle? Sarawak … (n.d.). Retrieved April 20, 2024, from https://www.birdforum.net/threads/how-to-differentiate-male-female-crested-serpent-eagle-sarawak-malaysian-borneo.418006/
- Guiana crested eagle – The Dallas World Aquarium. (n.d.). Retrieved April 20, 2024, from https://dwazoo.com/animal/guiana-crested-eagle/.
