All living animals with true feathers are birds. Feathers are one of the defining features of modern birds, whether the species flies through the air, swims underwater, or has lost the ability to fly altogether. Eagles, hummingbirds, penguins, ostriches, kiwis, and kakapos all look very different, but every one of them is feathered.
Feathers do much more than make flight possible. Depending on their structure and location, they help birds stay warm, streamline the body, steer in flight, protect the skin, repel water, camouflage against predators, and communicate through color and display. Fossils also show that feathers evolved before modern birds: several extinct non-avian dinosaurs had feathers or feather-like coverings.
25 Animals With Feathers at a Glance
| Animal | Group | Can it fly? | What its feathers help with |
|---|---|---|---|
| Golden eagle | Raptor | Yes | Flight, insulation, display |
| Ruby-throated hummingbird | Hummingbird | Yes | Hovering flight, insulation, iridescent display |
| House sparrow | Songbird | Yes | Flight, insulation, camouflage |
| Common swift | Aerial insectivore | Yes | High-speed sustained flight |
| Peregrine falcon | Falcon | Yes | Fast flight and aerodynamic control |
| Woodpecker | Climbing bird | Yes | Flight, insulation, signaling |
| Common cuckoo | Cuckoo | Yes | Flight, camouflage, display |
| Flamingo | Wading bird | Yes | Flight, insulation, coloration |
| Toucan | Tropical forest bird | Yes | Flight and body covering |
| Scarlet macaw | Parrot | Yes | Flight, display, insulation |
| Mallard | Waterfowl | Yes | Flight, insulation, water resistance |
| Shoebill | Wetland bird | Yes | Flight and insulation |
| Barn owl | Owl | Yes | Quiet flight, insulation, camouflage |
| Wandering albatross | Seabird | Yes | Long-distance soaring |
| Indian peafowl | Landfowl | Yes | Flight plus elaborate courtship display |
| Emperor penguin | Penguin | No | Insulation, waterproofing, underwater streamlining |
| Common ostrich | Ratite | No | Insulation, display, balance during running |
| Emu | Ratite | No | Insulation and protection from heat |
| Southern cassowary | Ratite | No | Body protection and insulation |
| Brown kiwi | Kiwi | No | Insulation and camouflage |
| Greater rhea | Ratite | No | Display, insulation, balance while running |
| Kakapo | Parrot | No | Camouflage and insulation |
| Flightless cormorant | Cormorant | No | Insulation and aquatic body covering |
| South Island takahe | Rail | No | Insulation and signaling |
| Weka | Rail | No | Insulation and camouflage |
Feathers are found on all living bird species, from small songbirds to large flightless birds.
What Animals Have Feathers?
Among living animals, feathers are unique to birds. The Smithsonian National Museum of Natural History lists feathers as one of the features that distinguish birds from other living vertebrates.
That does not mean birds were the first animals ever to have feathers. Fossils show that some extinct non-avian dinosaurs were feathered. Modern birds are themselves living dinosaurs, descended from small theropod dinosaurs. So the most accurate answer is:
Living animals with true feathers: birds.
Extinct animals known to have feathers: birds and some non-avian dinosaurs.
Mammals, reptiles, amphibians, fish, insects, and other living animal groups do not grow true feathers.
What Are Feathers Made For?
Feathers are made primarily of keratin, the same broad class of structural protein found in hair, nails, claws, and scales. Their detailed structure varies according to function.
Cornell Lab's Bird Academy separates feathers into several functional forms, including wing feathers, tail feathers, contour feathers, semiplumes, down, filoplumes, and bristles.
| Feather type | Main role |
|---|---|
| Wing feathers | Create the aerodynamic surfaces used for lift and propulsion |
| Tail feathers | Help with steering, braking, balance, and display |
| Contour feathers | Cover and streamline the body; also contribute to color and camouflage |
| Down feathers | Trap warm air close to the body for insulation |
| Semiplumes | Add insulation and help fill out body shape |
| Filoplumes | Help birds sense the position of nearby feathers |
| Bristles | Often protect the face and eyes or provide sensory functions |
Flying Animals With Feathers
Most living bird species can fly, although the way they use their feathers varies enormously. A hummingbird depends on rapidly moving wings for hovering, an albatross uses long wings for efficient soaring, and an owl has specialized wing feathers that reduce flight noise.
Golden Eagle
Golden eagles have broad wings and powerful flight feathers suited to soaring over mountains and open landscapes. Their dark body feathers provide insulation, while the golden feathers around the back of the head give the species its common name.
Ruby-Throated Hummingbird
Hummingbirds are among the most specialized flying birds. Their wing feathers support rapid wingbeats and hovering, while microscopic feather structures can create brilliant iridescent colors that change with viewing angle.
House Sparrow
The house sparrow is a familiar example of a small feathered songbird. Its contour feathers give the body a smooth outline, while wing and tail feathers provide the surfaces needed for short, agile flights.
Common Swift
Common swifts spend an extraordinary amount of time in the air. Their long, narrow wings and stiff flight feathers are adapted for fast, efficient aerial movement.
Peregrine Falcon
Peregrine falcons have pointed wings and aerodynamic plumage suited to high-speed flight. Their feathers must be strong enough to withstand rapid dives while remaining light enough for precise control.
Woodpeckers
Woodpeckers use their wing feathers for short flights between trees, while their stiff tail feathers can help brace the body against a vertical trunk during climbing and feeding.
Common Cuckoo
The common cuckoo has long wings and a long tail suited to migration and maneuvering through open woodland and scrub. Some cuckoo species are also known for brood parasitism. Read more in our Cuckoo Bird guide.
Flamingos
Flamingos are famous for pink plumage produced by carotenoid pigments obtained through diet. Despite their long legs and heavy-looking bodies, flamingos are capable fliers.
Toucans
Toucans are forest birds with large colorful bills and comparatively compact bodies. Their feathers provide the usual combination of body protection, insulation, color, and flight surfaces.
Scarlet Macaw
Macaws have striking red, yellow, and blue plumage used in visual communication and species recognition. Their long tail feathers also contribute to control during flight.
Mallard
Mallards combine flight feathers with dense body plumage adapted to life around water. The feather structure itself, together with preening and feather maintenance, helps keep the plumage functional in wet environments.
Shoebill
The shoebill is a large wetland bird of tropical Africa. Its broad wings carry a surprisingly large body, while gray contour feathers provide body covering and insulation.
Barn Owl
Barn owls are famous for quiet flight. Specialized feather edges help reduce aerodynamic noise, allowing the bird to approach prey with less sound than many other flying birds.
Wandering Albatross
Albatrosses have extremely long wings adapted for efficient soaring over the ocean. Their flight feathers allow them to travel long distances while minimizing the energetic cost of continuous flapping.
Indian Peafowl
Peafowl show how feathers can evolve for display as well as flight. The male peacock's famous “train” is made largely of elongated upper tail coverts rather than the true tail feathers themselves.
For more extreme examples, see Top 10 Birds With the Longest Feathers.
Flightless Animals With Feathers
Being unable to fly does not make a bird any less feathered. In flightless birds, feathers still provide insulation, camouflage, water resistance, signaling, or balance. Some species have wings that evolved for swimming or display instead of aerial flight.
Emperor Penguin
Penguins are covered in feathers even though their bodies can look smooth from a distance. Their wings have evolved into flippers, and their compact plumage helps insulate them in cold water and streamline the body for swimming.
Common Ostrich
The common ostrich is the world's largest living bird. It cannot fly, but its large feathers are important for display and can help with balance and maneuvering while the bird runs.
Emu
Emus are large Australian flightless birds. Their shaggy-looking feathers have a distinctive double-shafted structure and help protect the body from intense solar radiation and changing temperatures.
Southern Cassowary
Cassowaries have coarse dark plumage that can look almost hair-like. Their small wings are not used for flight, but the feathers still protect and insulate the body as the birds move through dense rainforest.
Brown Kiwi
Kiwi feathers also look unusually hair-like because the feather barbs do not form the smooth interlocking vane seen in many flying birds. Kiwis have tiny wings hidden beneath their body feathers and are fully flightless.
Greater Rhea
Rheas are large South American running birds. Their broad wings cannot lift the bird into sustained flight, but the wings and feathers can help with balance, turning, and courtship display.
Kakapo
The kakapo is a nocturnal, flightless parrot endemic to New Zealand. Its mottled green plumage provides strong camouflage among forest vegetation. Learn more in our Kakapo guide.
Flightless Cormorant
The flightless cormorant is native to the Galápagos Islands. Its wings are greatly reduced, but it remains an excellent swimmer and retains a full covering of feathers.
South Island Takahe
The takahe is a large, colorful rail from New Zealand. It is flightless, but its blue, green, and turquoise plumage remains important for insulation and visual signaling.
Weka
The weka is another flightless New Zealand rail. Its brown, streaked plumage helps it blend into forest floors, scrub, and grassland habitats.
Do Feathers Always Mean Flight?
No. Feathers evolved before modern powered flight and have several functions unrelated to flying. The Natural History Museum notes that many non-avian dinosaurs had feathers even though most could not fly. Insulation, display, and camouflage were probably important early functions.
Modern flightless birds prove the same point. Penguins use feathers while swimming, ostriches and rheas use them in display and balance, and kiwi use their unusual plumage for insulation and camouflage.
Why Are Some Bird Feathers So Colorful?
Bird colors come from several mechanisms. Pigments such as melanins and carotenoids can produce black, brown, yellow, orange, and red tones. Structural coloration is produced when microscopic feather structures interact with light, creating colors such as the iridescent greens, blues, and purples seen in hummingbirds and peafowl.
Color can help with camouflage, mate attraction, species recognition, territorial displays, and other forms of communication.
Do Birds Keep the Same Feathers for Life?
No. Feathers wear down and are periodically replaced through molting. The timing and pattern of molt vary greatly between species. Some birds replace most of their plumage once a year, while others have more complicated schedules or develop a distinct breeding plumage.
Because flight feathers are essential, many flying birds replace them in a controlled sequence so that they can continue flying during molt.
Are Penguins Really Covered in Feathers?
Yes. Penguins are birds and have dense feathers covering most of the body. Their feathers are short and tightly packed, which makes them look very different from the loose plumage of a chicken or eagle. This compact feather layer works together with body fat to reduce heat loss in cold environments.
Are There Any Mammals With Feathers?
No living mammal has true feathers. Mammals have hair or fur, which is a different type of keratin-based body covering. Some mammals may have quills, spines, or unusual hair that superficially resembles feathers, but these structures are not feathers.
Did Dinosaurs Have Feathers?
Some did. Fossils from several non-avian dinosaur groups preserve feathers or feather-like structures. This evidence helped establish the close evolutionary relationship between birds and theropod dinosaurs.
It is not correct to say that every dinosaur was feathered, but feathers clearly existed before the origin of modern birds. For more bird diversity, browse the Bird Directory.
Frequently Asked Questions
What animals have feathers?
All living animals with true feathers are birds. Examples include eagles, sparrows, parrots, owls, penguins, ostriches, kiwis, cassowaries, and thousands of other bird species.
Do all birds have feathers?
Yes. Feathers are a defining feature of living birds. Some birds have bare patches of skin, and some chicks hatch with little visible down, but all living bird species produce feathers.
Can an animal have feathers but not fly?
Yes. Penguins, ostriches, emus, cassowaries, kiwis, rheas, kakapos, takahe, weka, and flightless cormorants are all feathered but flightless.
Are feathers unique to birds?
Among living animals, yes. However, fossil evidence shows that some extinct non-avian dinosaurs also had feathers.
What are the main functions of feathers?
Feathers can support flight, insulation, steering, waterproofing, camouflage, courtship display, visual communication, and sensory feedback. Different feather types specialize in different jobs.
Do penguins have fur or feathers?
Penguins have feathers, not fur. Their feathers are short, dense, and tightly packed, which helps explain why they can look smooth from a distance.
Do birds replace damaged feathers?
Yes. Birds periodically replace old feathers through molt. The schedule varies between species and may be influenced by breeding, migration, season, and feather wear.
Official and Reference Sources
Cornell Lab Bird Academy — Everything You Need to Know About Feathers
Natural History Museum — How Did Birds and Other Dinosaurs Learn to Fly?
Final Takeaway
If you are looking for animals with feathers, the modern answer is simple: they are birds. What makes the subject interesting is how differently birds use those feathers. Some use them for high-speed flight, some for silent hunting, some for underwater swimming, and others for warmth, camouflage, or spectacular courtship displays. Flightless birds such as penguins, ostriches, kiwis, and kakapos show especially clearly that feathers are far more than just tools for flying.
