Have you ever seen a big bird in Illinois? It’s quite the sight! The majestic birds can be found all over the state, making it an ideal place to spot these magnificent creatures. Whether you’re an avid birder or just someone who enjoys watching wildlife, learning about the big birds of Illinois is sure to bring your outdoor adventures to life. In this article, we’ll discuss some of the biggest avian species that call our home state their own and look at where they live and how they interact with us humans. So let’s get started on discovering what makes these feathered friends unique!
Swainson’s Hawk

Swainson’s Hawk is a common bird of prey found in Illinois. It has dark brown feathers and yellow eyes, with a wingspan reaching up to five feet. This hawk is often seen soaring above open fields or perched atop trees looking for small animals such as mice or snakes to feed on. Swainson’s Hawk can also be distinguished by its distinctive call.

Other birds of prey commonly found in the state include the Great Horned Owl, Red Tailed Hawk, and Broad Winged Hawk.



All three species are capable predators that hunt small mammals, songbirds, reptiles, insects, and other small creatures as food sources. With their ability to soar high into the sky they offer an impressive sight while hunting over forests and fields alike.. To wrap this section up, it’s important to note that Swainson’s Hawks have been known to form cooperative breeding groups with members of other raptors like the Double Crested Cormorant.
Double Crested Cormorant

As the saying goes, “A change is as good as a rest,” transitioning to an exploration of Double Crested Cormorants in Illinois. The double crested cormorant (Phalacrocorax auritus) is one of the most common large waterbirds found in Illinois. This bird can be distinguished from its cousin, the great blue heron (Ardea herodias), by its shorter neck and stockier body size; its scientific name literally translates to “bald head with golden ear tufts”. These birds are often spotted near shorelines or perched atop branches along rivers and lakeshores throughout Illinois.

Bald eagle

The bald eagle (Haliaeetus leucocephalus) is considered a top predator that feeds on fish, small mammals, and other birds; this species has been known to feed upon double-crested cormorants at times. While their populations have increased significantly since being listed under the Endangered Species Act in 1978, they continue to face threats such as habitat destruction and environmental contamination due to human activity. Conservation efforts have included banning pesticides nationwide and improving breeding habitats for these majestic birds. Despite facing many challenges, it is heartening to see how far the population of this incredible species has come over time.

American Hering
The American Hering is a large group of birds that can be found in Illinois. These include golden eagles, whose scientific name is Aquila chrysaetos; snowy owls, which are known scientifically as Bubo scandiacus; and sandhill cranes, also called Antigone canadensis.
Golden Eagles typically live near open woodlands or grassy fields. They feed on small mammals such as rabbits and squirrels, along with other animals like snakes and lizards.


Snowy Owls prefer to inhabit the far northern reaches of North America, but they may migrate southward during winter months when food sources become scarce.


Sandhill Cranes make their home in wetland areas such as swamps and marshes where they forage for insects, frogs, rodents, and fish.


These majestic creatures play an important role in the environment by controlling rodent populations and providing prey to larger predators like foxes and coyotes. With careful conservation efforts from local governments, people can help ensure these species remain healthy throughout Illinois’ diverse habitats. By understanding the needs of these birds we can take steps to protect them into the future.
Common Loon

The Common Loon, or scientific name Gavia immer, is a large water bird that can be found in Illinois during their migrations. They are distinctive for their red eyes and black-and-white checkered pattern on the back of their neck. It’s estimated that over 2,000 loons visit Illinois every year as they migrate from Canada to the Gulf Coast.

These birds feed on fish along rivers and lakes but will occasionally take insects too. Loons nest near bodies of water where it’s safe for them to breed and raise chicks. During breeding season, many great horned owls (Bubo virginianus) compete with these birds for nesting sites alongside other waterfowl such as the canada goose (Branta Canadensis) and snowy owl (Nyctea scandiaca).
Common Loons are important contributors to our ecosystems since they help control aquatic invertebrates by preying upon them. As predators at the top of food webs, this species helps maintain healthy populations of small animals like dragonflies and crayfish which provide sustenance for other organisms in turn. The next section will discuss a much larger avian species -the American White Pelican.
American White Pelican

The American White Pelican is a large bird that can be found in Illinois. It has a wingspan of up to ten feet and a white body with black primaries, or outermost feathers on its wings. Its head is topped by an orange-yellow bill and pouch, which it uses for scooping fish from the water when feeding. These birds often nest near lakes and rivers where food sources are plentiful. They live in colonies with other pelicans such as bald eagles and red tailed hawks.
The adult plumage of the American White Pelican is mostly white with some grayish blue patches on the back and sides of the wings. Juveniles are darker brown on the upper parts than adults but maintain the same pattern of feathering. Despite their size, they have excellent flying skills, making them efficient predators of small fish in their environment.
They also feed on frogs, salamanders, insects, crustaceans, rodents, and snakes. In addition to being strong flyers, these birds are known for their social behavior—they often form flocks while migrating between habitats or roosting sites. This allows them to benefit from shared knowledge about potential dangers or good places to find food along their journey.

Sandhill Crane

The Sandhill Crane is a large bird found in Illinois. Its scientific name is Grus canadensis and it has gray feathers with red patches on its head and neck. It’s also known for its loud vocalizations, usually heard before sunrise or at dusk. The Sandhill Crane migrates south during the winter to areas like Florida and Texas, but some may stay in Illinois if there’s enough food available. They often feed alongside Canada Geese or near farm fields where they eat insects, grain, frogs, snakes, berries, and more.

These birds nest once a year between March and June in shallow marshy wetlands located close to rivers and lakes. Their nests are constructed out of grasses mixed with mud which makes them difficult to spot from a distance. In addition to nesting season, this species tends to gather together in large flocks during fall migration when thousands of sandhill cranes migrate through central Illinois each year; an impressive sight that many people enjoy watching!
Red-Tailed Hawk

Another big bird in Illinois is the Red-tailed Hawk. It has a reddish-brown back and white underside, with small black spots on its chest. These hawks are usually found soaring high above open fields, but can sometimes be seen perched atop telephone poles or trees. They feed primarily on small mammals, reptiles, and birds.

Illinois also provides habitat for other hawk species such as the Sharp-shinned Hawk and Peregrine Falcon. The Sharp-shinned Hawk appears very similar to the Cooper’s Hawk, which is also common in Illinois. However, it tends to live more in woodlands than grassy areas like its relative does. In contrast, the Peregrine Falcon prefers living near tall buildings or cliffs that offer wide open spaces where they can soar at great heights while searching for prey.
These hawks are an important part of our state’s ecosystem since they help control populations of smaller animals that could otherwise become too numerous without natural predators to keep them in check. With their majestic wingspans and incredible hunting skills, these raptors have been captivating us humans since time immemorial. As we transition into learning about another large bird in Illinois – the Mourning Dove – let us remember to appreciate all of nature’s creatures alike!
Mourning Dove

Aforetime, the Mourning Dove has been a common sight in Illinois. With its distinct call and soft gray-brown feathers, this medium-sized bird can be seen fluttering around fields and perching atop powerlines throughout the state.

In addition to the Mourning Dove, two other large birds are commonly spotted in Illinois: turkey vultures and great horned owls.


Turkey vultures reside year-round in Illinois’s woodlands, lakeshores, and grassland habitats. They have black wings with silvery white patches near their tips. This species is often mistaken for an eagle due to its impressive size; it typically grows up to three feet tall with a six foot wingspan!
Great horned owls are also found here; they’re mostly nocturnal creatures that use their sharp talons to capture prey at night. These birds of prey feature angular faces with tufted ears, large orange eyes, and grayish or brown feathering over most of their bodies. It’s not uncommon to spot them perched high in trees during the day time hours. Evidently then, Illinois is home to some remarkable avian species–the next being the majestic great blue heron…
Great Blue Heron

Moving on from the Mourning Dove, another big bird in Illinois is the Great Blue Heron. This large wading bird stands at a height of up to four feet tall and has a wingspan of over six feet wide! The scientific name for this species is Ardea Herodias. Just like other herons, they have long black legs and sharp beaks that are perfect for catching fish.

The Great Blue Heron can be found all across Illinois during any season as it is not migratory like some other birds such as snow owls or turkey vultures. This species is often seen near bodies of water such as rivers and lakes where there are plenty of food sources available. It makes its nests high up in trees so keep an eye out if you’re ever looking for one!
Next up, we will discuss the great egret which is also commonly found throughout Illinois.
Great Egret

The great egret is one of the most ubiquitous birds in Illinois and many other states. It’s so common, in fact, that it almost seems like a nuisance! But don’t be fooled – this majestic bird has some unique characteristics that make it stand out among its feathered brethren. Its scientific name is Ardea alba, which translates to “white heron.” The great egret stands tall with a snowy white plumage, long neck and legs, and yellow feet – making it easily distinguishable from golden eagles, turkey vultures, or cooper’s hawks. This magnificent creature can grow up to three feet high and weigh as much as five pounds.

These beautiful creatures are known for their fishing habits; they wade into shallow waters and patiently wait for fish to swim by before snatching them up with their sharp bills. Great Egrets also inhabit wetlands such as marshes, swamps, ponds and lakes – perfect places for them to catch dinner each night. As we’ve seen, there’s more than meets the eye when it comes to these impressive birds. They provide an important role within our ecosystems and deserve our admiration. Moving on then…
Canada Goose

Moving on from the Great Egret, another popular bird found in Illinois is the Canada Goose. It’s a large waterfowl that can make its home in various habitats, ranging from parks to wetlands and farmyards. The white-cheeked adult has an iconic black head and neck with white patches around the eyes and chin. They are also recognized by their loud honking calls which they use as a way of communication amongst each other.

In addition to the Canada Goose, two other birds commonly seen in Illinois are the Great Blue Heron and Snow Owl. The heron is usually spotted near bodies of water such as rivers or ponds due to its diet consisting mostly of fish, frogs, snakes and insects. It has an unmistakable blue-gray body with long legs and beak that it uses for hunting prey items. As for the Snowy Owl, this magnificent creature typically inhabits open tundra areas but can sometimes be seen further south during winter months when searching for food sources like rodents and rabbits. Its unique coloration provides excellent camouflage against predators while they nest among tall grasses and shrubs.
The majestic Golden Eagle will be discussed next – one of largest birds of prey found in North America!
Golden Eagle

The golden eagle is one of the most impressive large birds found in Illinois. Its scientific name, Aquila chrysaetos, translates to “eagle with golden feathers”. The wingspan of this majestic raptor can reach up to seven and a half feet wide! Golden eagles are often confused with bald eagles due to their similar body shapes. However, they can be distinguished by their darker brown heads, larger size, and longer tail feathers.
Golden eagles are not typically seen alone as they prefer nesting near other species such as turkey vultures or red-tailed hawks. They also prefer open spaces such as prairies and farmlands for hunting small mammals like rabbits and squirrels. While there have been reported sightings of golden eagles in some parts of Illinois over the years, these sightings tend to be few and far between compared to other bird species in the state.

This section has discussed the characteristics and habits of Illinois’ golden eagles. Great horned owls are another type of raptor which make their home in Illinois.
Great Horned Owl

The graceful golden eagle takes a backseat to its cousin, the great horned owl. These broad-winged hawks are an impressive sight in the skies of Illinois. A powerful predator that is known for their fierce hunting abilities, it’s no wonder why they have been given such majestic titles as “Tiger Owl” or even more simply; “Hoot Owl”.
Great Horned Owls can be found throughout most of North America and migrate south during winter months. They also dwell in open woodlands, marshes and grasslands usually near rivers or lakes. Generally speaking, these owls feed on small mammals like rabbits, skunks, mice and voles but will eat anything from fish to dead animals when necessary. In the northern regions of Illinois one might find Snow Owls which prefer wide-open spaces like fields and tundras with plenty of prey nearby.

These birds have many adaptations including their large size, excellent vision in low light conditions and silent flight – all used to help them hunt undetected by their unsuspecting prey. Great Horned Owls can live up to 12 years in the wild so long as they remain well fed and safe from human interference or predators alike.
Black Vulture

The Black Vulture is one of the vulture species that can be found in Illinois. It has a scientific name of Coragyps atratus and its black feathers set it apart from other scavenging birds. The wingspan of this bird is around five feet, making them quite large for a vulture. They are known to feed on carrion and garbage, but they also eat small mammals, insects, eggs, and young birds. Sometimes these birds will even hunt together in groups or follow predators such as eagles to find food.

Unlike many other avian species, the Black Vulture does not build nests; instead they roost in trees or cliff faces with their own kind. These birds tend to congregate near farms and suburban areas where they can easily get access to food sources like dumpsites and open landfills. As a result, sightings of these birds have become increasingly common throughout Illinois. To avoid potential conflicts between humans and wildlife, people should practice safe disposal habits when disposing of waste materials so as to reduce the amount available for consumption by Black Vultures and other animals. Transitioning into the next section about pileated woodpecker, this bird species is native to North America and resides mostly in mature forests filled with dead tree trunks.
Pileated Woodpecker

The Pileated Woodpecker is a large bird found in Illinois. It has black feathers with white stripes on its wings, and red plumage around the neck and head of males. Its call is loud and distinctive; it sounds like someone hammering on wood.

This species can be seen all across the state but favors certain areas more than others, such as wetlands, deciduous forests, swamps, and riverbanks. Other big birds that are commonly observed in Illinois include the Rough-legged Hawk, Snowy Owl, Trumpeter Swan (Cygnus buccinator) and many other waterfowl species.



These birds rely heavily on their habitats for survival; they need access to appropriate nesting sites and food sources in order to thrive. Unfortunately, human activities have caused some of these habitats to disappear or become degraded over time — making it increasingly difficult for these big birds to survive in our state. Conservation efforts must be taken to restore their natural habitat so that future generations may enjoy watching them soar through the skies of Illinois.
Frequently Asked Questions
What Is The Population Size Of Big Birds In Illinois?
When it comes to big birds, population size is an important factor in understanding their impact on the environment. According to recent studies, the population of big birds in Illinois has grown significantly over the past decade. In fact, there are now more than 4 million big birds across the state! This remarkable growth shows that conservation efforts have been successful and that these majestic creatures are thriving.
The increase in population size isn’t only impressive; it also provides us with a unique opportunity for further study into how these animals interact with their environment. Researchers can now explore interactions between different species of big birds as well as observe how they adapt to changing climates and new habitats. With such large numbers of individuals present, we might even be able to gain insight into previously unknown behaviors or characteristics.
This exciting development gives us hope for a brighter future for both our wildlife and our planet. It’s easy to forget just how essential biodiversity is to sustaining life on earth but this growing number of big birds serves as an excellent reminder of its importance. We should do all we can to ensure that these populations stay healthy and continue to flourish so that future generations can enjoy them too.
What Is The Average Lifespan Of Big Birds In Illinois?
When it comes to the average lifespan of birds, there are many factors that can influence this. From climate conditions and environmental hazards to predation from other animals and even diseases, understanding the life expectancy of different types of birds is an important part of learning about them. Here’s a quick overview:
- Temperature fluctuations over time can affect how long certain species live.
- Predators can significantly reduce the overall population size in any given area by preying on eggs or young birds.
- Diseases such as avian malaria can drastically lower the survival rate for some bird populations.
- Parasites like mites, fleas and worms may also be detrimental to their health if they become infected with them.
- Diet plays a huge role in determining how long a bird will live – poor nutrition means shorter lifespans!
So when considering big birds living in Illinois, what might their average lifespan look like? The answer depends largely on which type of large bird we’re referring to; Bald Eagles tend to have much longer lifespans than hawks or vultures, while geese and swans may live up to 30 years in captivity – though typically not more than 15 years in the wild due to various environmental dangers. Ultimately, each species has its own unique set of characteristics that make predicting their average lifespan difficult but possible with enough research into local habitats and conditions.
How Do Big Birds In Illinois Adapt To Changing Weather Conditions?
Adapting to changing weather conditions is a challenge faced by many species. Big birds in Illinois are no exception, as they must use the resources available to them in order to survive and thrive. There are several strategies used by these birds which can help them adjust to their environment accordingly.
One way big birds adapt is through migration; they may fly south during colder months or move elsewhere when food sources become scarce. Additionally, some of these creatures will molt or change feathers depending on the season in order to maintain body temperature and protect themselves from the elements. Furthermore, they may also take shelter under trees or other structures when necessary and build nests that provide insulation against cold temperatures. Finally, big birds have adapted behaviorally over time so that they can better utilize their habitats for survival needs such as food availability and protection from predators.
In summary, big birds in Illinois face unique challenges when it comes to adapting to changing weather conditions. They rely on both physical adaptations such as molting or migrating, as well as behavioral changes like seeking out shelters and building insulated nests. Through careful planning and utilization of resources, these animals are able to continue surviving despite unpredictable weather patterns.
What Is The Impact Of Human Activity On Big Birds In Illinois?
Human activity can have a drastic impact on the natural environment. This includes big birds in Illinois, which are affected by activities such as deforestation, urban development and agriculture. It is important to understand how human activity affects these creatures so that we can ensure their continued survival.
Deforestation has been one of the most significant causes of habitat loss for big birds in Illinois. The destruction of forests decreases suitable nesting areas and food sources, meaning fewer places for them to roost and feed. Urbanization also poses a threat to these birds; construction projects often damage or destroy their habitats while reducing available resources like food and water. Additionally, agricultural practices can reduce large-scale bird migration patterns, leading to population declines over time.
Overall, it is essential that humans take proactive steps towards conserving big birds in Illinois before they become threatened with extinction. Conservation efforts must include protecting existing habitats from further degradation as well as creating new protected spaces for these animals to thrive. By taking responsibility for our actions and working together to conserve wildlife, we can help preserve this precious species and its ecosystem for generations to come.
What Conservation Efforts Are Being Made To Protect Big Birds In Illinois?
The conservation of wildlife is a major focus for many people around the world. From efforts to protect endangered species to curbing human activity that could harm animal life, there are numerous initiatives in place to help sustain our planet’s biodiversity. In Illinois specifically, this includes protecting big birds from their natural predators and other threats caused by humans.
In terms of conservation efforts, organizations like the Audubon Society have been working diligently in recent years to ensure vulnerable bird populations can thrive without fear of endangerment or extinction. This includes providing safe habitats, advocating for better environmental laws, and helping citizens understand how they can make a positive impact on these creatures’ lives. With public support, it has become possible for them to monitor nests and create monitoring programs which will track migration patterns as well as population numbers over time. Additionally, the state government provides grants and funding opportunities to groups dedicated to preserving birds’ habitats while also educating those living near such areas about ways they can help keep them safe from harm.
By engaging with communities and developing strong partnerships between various stakeholders, organizations like the Audubon Society are able to provide a more comprehensive approach to conserving big birds in Illinois. Through educational outreach campaigns regarding responsible behavior near nesting sites as well as habitat preservation projects, we can all do our part in making sure these beautiful creatures remain part of our state’s ecosystem for generations to come.
Conclusion
In conclusion, the big birds of Illinois are an important part of the state’s ecosystem. While their population is not as large as other bird populations in other states, it still has a significant impact on the environment and should be protected accordingly. Their average lifespan can vary depending on environmental conditions, but with proper care they can live for many years. Big birds have adapted to changing weather patterns over time and have been able to survive despite human activity around them. In order to ensure that these beautiful creatures continue living in our state, conservation efforts should be made to protect them from further harm or destruction. As Henry David Thoreau once said: “The hare lives by memory; I by hope.” We must remember this when protecting big birds in Illinois and hope that we can preserve the species for future generations to enjoy.