Peregrine Falcon Vs Bald Eagle: A Detailed Comparison

The peregrine falcon and the bald eagle are two of the most majestic birds of prey in North America. With their sharp talons, keen eyesight, and incredible speed, they capture our imaginations and represent strength and power.

If you’re short on time, here’s a quick answer to your question: The peregrine falcon is smaller, faster and more agile, while the bald eagle is larger and more powerful. The peregrine falcon can reach speeds over 200 mph when diving, making it the fastest animal on Earth.

The bald eagle has a wingspan up to 8 feet and can lift heavier prey.

In this approximately 3000 word article, we will compare and contrast the peregrine falcon and the bald eagle in depth. We will examine their size, speed, habitat, hunting techniques, diet, nesting behaviors, conservation status, and more.

Whether your interest is ornithological or symbolic, you will learn fascinating details about these iconic birds of prey.

Size and Physical Attributes

Wingspan and Length

The peregrine falcon and the bald eagle are both majestic birds of prey, known for their impressive size and physical attributes. When it comes to wingspan, the bald eagle takes the lead with an average wingspan of 6 to 7.5 feet, while the peregrine falcon has a slightly smaller wingspan, ranging from 3 to 4 feet.

In terms of length, the peregrine falcon measures around 14 to 19 inches, whereas the bald eagle can reach a length of 28 to 40 inches.


In terms of weight, the bald eagle outweighs the peregrine falcon. An adult bald eagle can weigh anywhere between 6 to 14 pounds, while the peregrine falcon usually weighs around 1 to 2 pounds. This difference in weight allows the bald eagle to have a more powerful and robust physique, making it one of the largest birds of prey in North America.


Both the peregrine falcon and the bald eagle have exceptional vision, but the peregrine falcon takes the prize for having the sharpest eyesight among all birds. With their specialized eyes, peregrine falcons are capable of spotting prey from great distances and reaching incredible speeds during their hunting dives.

It is estimated that their vision is eight times sharper than that of a human. On the other hand, the bald eagle also possesses remarkable eyesight and is known for its ability to spot fish from high above the water.

Talons and Beaks

When it comes to their talons and beaks, both birds have powerful and sharp tools for hunting and feeding. The peregrine falcon has strong talons that allow it to grasp and immobilize its prey with precision. Its beak is curved and hooked, enabling it to tear into its prey easily.

The bald eagle, on the other hand, has long, strong talons that are capable of catching and carrying larger prey. Its beak is also strong and hooked, designed for tearing and ripping apart its food.

Habitat and Geographic Range

Peregrine Falcon Habitat

The Peregrine Falcon is a highly adaptable bird that can be found in a variety of habitats around the world. They are known to inhabit coastal cliffs, mountainous regions, and even urban areas. These birds prefer open spaces where they can easily spot their prey from above.

Peregrine Falcons are known for their incredible speed and agility, which allows them to hunt effectively in a wide range of environments.

Bald Eagle Habitat

Bald Eagles, on the other hand, have a more specific habitat preference. They are typically found near bodies of water such as rivers, lakes, and coastal areas. These majestic birds build their massive nests, known as eyries, in tall trees near water sources.

The abundance of fish in these areas provides the Bald Eagles with a steady food supply. They are also known to migrate during the winter months, often traveling long distances to find suitable hunting grounds.

Overlapping Habitats

While the habitat preferences of Peregrine Falcons and Bald Eagles may differ, there are certain areas where their ranges overlap. This is especially true in coastal regions, where both birds can find ample prey.

In these areas, it is not uncommon to see these two species competing for food and territory. Despite their size difference, both the Peregrine Falcon and the Bald Eagle are formidable hunters and can coexist in the same habitat.

According to the National Audubon Society, Peregrine Falcons can be found throughout North America, Europe, and Asia. They are known to migrate long distances, with some individuals traveling thousands of miles each year.

On the other hand, Bald Eagles are primarily found in North America, from Alaska and Canada down to Mexico. They are considered a symbol of strength and freedom in the United States and are protected under the Bald and Golden Eagle Protection Act.

Hunting and Diet

When comparing the hunting and diet of the Peregrine Falcon and the Bald Eagle, it becomes evident that although they are both raptors, they employ different strategies and prey on different types of animals.

Hunting Strategies

The Peregrine Falcon is known for its exceptional speed and agility in the air. It is a master of aerial hunting and employs a hunting strategy known as “stooping,” where it dives from great heights to catch its prey in mid-air.

This impressive hunting technique allows the Peregrine Falcon to reach speeds of up to 240 miles per hour (386 kilometers per hour) during its descent, making it the fastest animal in the world.

The Bald Eagle, on the other hand, is primarily a fish-eating bird. It hunts by perching on a tree or cliff and scanning the water for potential prey. Once it spots a fish, it will swoop down and snatch it from the surface of the water with its sharp talons.

The Bald Eagle is also known to scavenge for carrion, feeding on dead animals that it finds.


The Peregrine Falcon’s diet consists mainly of small to medium-sized birds, such as pigeons, ducks, and songbirds. It is a skilled predator and is capable of catching birds in mid-flight, often taking them by surprise with its lightning-fast speed.

The Peregrine Falcon’s diet may vary depending on its habitat and the availability of prey.

The Bald Eagle, on the other hand, primarily feeds on fish, particularly those found in freshwater bodies like rivers, lakes, and coastal areas. Its diet includes a variety of fish species, such as salmon, trout, and herring.

Additionally, the Bald Eagle may also prey on small mammals, waterfowl, and carrion.

Dietary Overlap

While the Peregrine Falcon and the Bald Eagle have different primary prey species, there is some overlap in their diets. In certain areas where their habitats intersect, both birds may compete for similar prey, especially when it comes to smaller birds or waterfowl.

This overlap can sometimes lead to territorial disputes and competition for food resources.

It is worth noting that the diet of both birds can be influenced by various factors, such as seasonal changes, availability of prey, and geographical location. The adaptability of these raptors allows them to adjust their hunting techniques and diet accordingly, ensuring their survival in their respective habitats.

For more information on the hunting and diet of the Peregrine Falcon and the Bald Eagle, you can visit the following websites:

– National Geographic:

– Cornell Lab of Ornithology:

– U.S. Fish and Wildlife Service:

Breeding and Nesting


Peregrine falcons and bald eagles have unique courtship rituals. Male peregrine falcons impress potential mates with their aerial acrobatics, performing breathtaking dives and loops in the sky. These displays showcase their speed and agility, leaving the female falcon in awe.

On the other hand, bald eagles engage in elaborate courtship displays that involve calling, chasing, and even locking talons mid-air. These displays demonstrate their strength and commitment to their partner.

Nest Locations

Both peregrine falcons and bald eagles build nests, but they have different preferences for their nest locations. Peregrine falcons are known for their ability to adapt to urban environments, often choosing to nest on tall buildings, bridges, or cliffs.

They create a scrape nest, which is a shallow depression on a ledge or rocky surface. In contrast, bald eagles prefer nesting near bodies of water, such as lakes, rivers, or coastlines. They construct large nests made of sticks, often situated high up in trees.

Eggs and Chicks

Peregrine falcons and bald eagles both lay eggs, but their reproductive strategies differ. Peregrine falcons lay a clutch of 3-4 eggs, which are incubated by both parents for about a month. The chicks hatch asynchronously, meaning they hatch at different times, resulting in a staggered age difference among siblings.

This ensures that there is enough food for all the chicks as they grow. In contrast, bald eagles typically lay 1-3 eggs, and the parents take turns incubating the eggs for about 35 days. The chicks hatch at the same time, creating a synchronized sibling group.

Parenting Roles

When it comes to parenting, both peregrine falcons and bald eagles exhibit distinct roles. Male peregrine falcons are responsible for hunting and providing food for the female and chicks. The female stays with the chicks most of the time, ensuring their safety and warmth.

In bald eagle pairs, both parents participate in hunting and feeding the chicks. However, the female tends to spend more time in the nest, while the male brings food to the nest and helps protect the territory.

Threats and Conservation

The Peregrine Falcon and the Bald Eagle have both faced significant threats to their populations in the past. However, conservation efforts have played a crucial role in bringing these magnificent birds back from the brink of extinction.

Past Population Declines

Both the Peregrine Falcon and the Bald Eagle experienced a rapid decline in their populations due to human activities. In the case of the Peregrine Falcon, the widespread use of pesticides such as DDT in the mid-20th century caused thinning of their eggshells, leading to reproductive failure and a decline in their numbers.

The Bald Eagle, on the other hand, faced habitat loss, hunting, and the impacts of pollution.

During the 1970s, the population of Peregrine Falcons in North America plummeted to an all-time low. In response, a ban on DDT and other harmful pesticides was implemented, leading to a remarkable recovery of the species.

Today, Peregrine Falcons can be found nesting on skyscrapers and bridges in urban areas, a testament to their resilience and adaptability.

The Bald Eagle population also faced a similar decline, reaching an alarming low of just a few hundred individuals in the contiguous United States. However, intensive conservation efforts, including habitat protection, captive breeding programs, and the banning of harmful substances, have helped the species make a remarkable comeback.

As a result, the Bald Eagle was removed from the endangered species list in 2007.

Current Protections

Both the Peregrine Falcon and the Bald Eagle are now protected under various national and international laws. In the United States, the Bald and Golden Eagle Protection Act and the Migratory Bird Treaty Act provide legal protection for these birds and their habitats.

These laws make it illegal to harm, disturb, or possess these species or their nests and eggs without a permit.

Internationally, the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) regulates the trade of live birds and their parts to prevent illegal trafficking and ensure their conservation.

Remaining Threats

While significant progress has been made in conserving both the Peregrine Falcon and the Bald Eagle, there are still ongoing threats that require continued attention. Habitat loss and degradation, pollution, climate change, and collisions with infrastructure, such as wind turbines and power lines, pose significant risks to these birds.

Efforts are underway to mitigate these threats. Conservation organizations, government agencies, and researchers are working together to protect and restore vital habitats, raise awareness about the importance of these birds, and implement measures to minimize human-induced threats.

It is essential for individuals to play their part in the conservation of these magnificent birds. By supporting conservation organizations, advocating for responsible land and resource management practices, and promoting environmental education, we can ensure that the Peregrine Falcon and the Bald Eagle thrive for generations to come.


In summary, while the peregrine falcon and bald eagle overlap in some ways, they have adapted to different ecological niches.

The peregrine is a petite speedster, reaching up to 200 mph dives and favoring agile, avian prey. The bald eagle is a substantial powerhouse, with an 8 foot wingspan and the strength to lift large fish and even small mammals.

Both faced grave threats from pesticides like DDT but have rebounded thanks to conservation efforts. Today they stand as living symbols of speed, strength and wilderness.

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