174 relations: Alvarezsauridae, American alligator, Anchiornis, Anting (bird activity), Appendage, Archaeopterygidae, Archaeopteryx, Arrow, Aucasaurus, Barn swallow, Beak, Bedding, Beta sheet, Biology Letters, Bird, Bird strike, Blanket, Bristle, Brueelia, Budgerigar, Camouflage, Canada, Carnotaurus, Carotenoid, Ceratopsidae, Ceratosaurus, Chicken, Clade, Claw, Clothing, Club-winged manakin, Coat (clothing), Coelurosauria, Common ostrich, Conditioner (chemistry), Condor, Confuciusornis, Crest (feathers), Crocodilia, Cross-link, Crypsis, David Norman (ornithologist), Delayed feathering in chickens, Dilong paradoxus, Dinosaur, Disulfide, Down feather, Dromaeosauridae, Dust bathing, Eagle, ..., Eagle feather law, Egret, Eider, Emulsion, Enantiornithes, Epidermis (zoology), Evolutionary developmental biology, Exoskeleton, Eyelash, Feather development, Feather hole, Feathered dinosaur, First Nations, Fishing lure, Fletching, Flight feather, Frank Chapman (ornithologist), Gloger's rule, Goose, Grebe, Hair, Hair follicle, Hairstyle, Hawk, Heat, Hen feathering, Heterodontosauridae, Homology (biology), Hoof, Horn (anatomy), Hummingbird, Hydrogen bond, Indian peafowl, Integumentary system, Iridescence, Jeholornis, Juravenator, Keratin, Kulindadromeus, Lacey Act of 1900, List of poultry feathers, Louse, Mammal, Maniraptora, Mate choice, Mattress, Melanin, Microraptor, Middle Triassic, Moulting, Native Americans in the United States, Oil spill, Ornithischia, Ornithopod, Ornithoscelida, Oviraptorosauria, Paraves, Parrot, Pedopenna, Penguin, Pennaceous feather, Pheasant, Phoresis (biology), Phylogenetics, Pillow, Pin feather, Pinioning, Plumage, Plume hunting, Porphyrin, Powder, Predation, Preening (bird), Protein, Psittacofulvin, Psittacosaurus, Pterosaur, Quill, Rachis, Ratite, Refraction, Reptile, Richard Prum, Saurischia, Sauropodomorpha, Scale (anatomy), Scansoriopterygidae, Scientific American, Sexual dimorphism, Sexual selection, Signal, Singing bird box, Sinornithosaurus, Sinosauropteryx, Sister group, Skin, Sleeping bag, Stridulation, Structural coloration, Taxon, The New York Times, The Quarterly Review of Biology, The Wilson Journal of Ornithology, Therizinosaur, Thermal insulation, Theropoda, Thyreophora, Tianyulong, Troodontidae, Turacin, Turaco, Turacoverdin, Turkey (bird), Tyrannosauroidea, Tyrannosaurus, Ultraviolet, Uropygial gland, Vertebrate, Victorian fashion, Whiskers, White feather, Whooping crane, Willow flycatcher, Yutyrannus. Expand index (124 more) » « Shrink index
Alvarezsauridae is a group of small, long-legged dinosaurs.
The American alligator (Alligator mississippiensis), sometimes referred to colloquially as a gator or common alligator, is a large crocodilian reptile endemic to the southeastern United States.
Anchiornis is a type of small, four-winged paravian dinosaur.
Anting is a self-anointing behavior during which birds rub insects, usually ants, on their feathers and skin.
In invertebrate biology, an appendage (or outgrowth) is an external body part, or natural prolongation, that protrudes from an organism's body (in vertebrate biology, an example would be a vertebrate's limbs).
Archaeopterygidae is a group of maniraptoran dinosaurs that lived during the late Jurassic period.
Archaeopteryx, meaning "old wing" (sometimes referred to by its German name Urvogel ("original bird" or "first bird")), is a genus of bird-like dinosaurs that is transitional between non-avian feathered dinosaurs and modern birds.
An arrow is a fin-stabilized projectile that is launched via a bow, and usually consists of a long straight stiff shaft with stabilizers called fletchings, as well as a weighty (and usually sharp and pointed) arrowhead attached to the front end, and a slot at the rear end called nock for engaging bowstring.
Aucasaurus was a genus of medium-sized theropod dinosaur from Argentina that lived during the Santonian - Campanian stage of the Anacleto Formation.
The barn swallow (Hirundo rustica) is the most widespread species of swallow in the world.
The beak, bill, or rostrum is an external anatomical structure of birds that is used for eating and for preening, manipulating objects, killing prey, fighting, probing for food, courtship and feeding young.
Bedding, also known as bedclothes or bed linen, is the materials laid above the mattress of a bed for hygiene, warmth, protection of the mattress, and decorative effect.
The β-sheet (also β-pleated sheet) is a common motif of regular secondary structure in proteins.
Biology Letters is a peer-reviewed, biological, scientific journal published by the Royal Society.
Birds, also known as Aves, are a group of endothermic vertebrates, characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton.
A bird strike—sometimes called birdstrike, bird ingestion (for an engine), bird hit, or bird aircraft strike hazard (BASH)—is a collision between an airborne animal (usually a bird or bat) and a manmade vehicle, especially an aircraft.
A blanket is a large piece of soft cloth.
A bristle is a stiff hair or feather (natural or artificial), either on an animal, such as a pig, or on a tool such as a brush or broom.
Brueelia (formerly spelled Brüelia) is a genus of lice in the family Philopteridae, containing the following species.
The budgerigar (Melopsittacus undulatus), also known as the common parakeet or shell parakeet and usually informally nicknamed the budgie, is a small, long-tailed, seed-eating parrot.
Camouflage is the use of any combination of materials, coloration, or illumination for concealment, either by making animals or objects hard to see (crypsis), or by disguising them as something else (mimesis).
Canada is a country located in the northern part of North America.
Carnotaurus is a genus of large theropod dinosaur that lived in South America during the Late Cretaceous period, from about 72 to 69.9 million years ago.
Carotenoids, also called tetraterpenoids, are organic pigments that are produced by plants and algae, as well as several bacteria and fungi.
Ceratopsidae (sometimes spelled Ceratopidae) is a family of marginocephalian dinosaurs including Triceratops, Centrosaurus, and Styracosaurus.
Ceratosaurus (from Greek κέρας/κέρατος, keras/keratos meaning "horn" and σαῦρος/sauros meaning "lizard") was a predatory theropod dinosaur in the Late Jurassic Period (Kimmeridgian to Tithonian).
The chicken (Gallus gallus domesticus) is a type of domesticated fowl, a subspecies of the red junglefowl.
A clade (from κλάδος, klados, "branch"), also known as monophyletic group, is a group of organisms that consists of a common ancestor and all its lineal descendants, and represents a single "branch" on the "tree of life".
A claw is a curved, pointed appendage, found at the end of a toe or finger in most amniotes (mammals, reptiles, birds).
Clothing (also known as clothes and attire) is a collective term for garments, items worn on the body.
The club-winged manakin (Machaeropterus deliciosus) is a small passerine bird which is a resident breeding species in the cloud forest on the western slopes of the Andes Mountains of Colombia and northwestern Ecuador.
A coat is a garment worn by either sex,Oxford English Dictionary.
Coelurosauria (from Greek, meaning "hollow tailed lizards") is the clade containing all theropod dinosaurs more closely related to birds than to carnosaurs. Coelurosauria is a subgroup of theropod dinosaurs that includes compsognathids, tyrannosaurs, ornithomimosaurs, and maniraptorans; Maniraptora includes birds, the only dinosaur group alive today. Most feathered dinosaurs discovered so far have been coelurosaurs. Philip J. Currie considers it probable that all coelurosaurs were feathered. In the past, Coelurosauria was used to refer to all small theropods, this classification has since been abolished.
The ostrich or common ostrich (Struthio camelus) is either of two species of large flightless birds native to Africa, the only living member(s) of the genus Struthio, which is in the ratite family.
A conditioner is a substance or process that improves the quality of another material.
Condor is the common name for two species of New World vultures, each in a monotypic genus.
Confuciusornis is a genus of primitive crow-sized birds from the Early Cretaceous Yixian and Jiufotang Formations of China, dating from 125 to 120 million years ago.
The crest is a prominent feature exhibited by several bird and other dinosaur species on their heads.
Crocodilia (or Crocodylia) is an order of mostly large, predatory, semiaquatic archosaurian reptiles, known as crocodilians.
A cross-link is a bond that links one polymer chain to another.
In ecology, crypsis is the ability of an animal to avoid observation or detection by other animals.
Professor David Norman (born 1949) is a British Chartered Physicist and ornithologist, he has lived in Cheshire since 1978.
Delayed-feathering in chickens is a genetically determined delay in the first weeks of feather growing, which occurs normally among the chicks of many chicken breeds and no longer manifests itself once the chicken completes adult plumage.
Dilong (帝龍, which means 'emperor dragon') is a genus of basal tyrannosauroid dinosaur.
Dinosaurs are a diverse group of reptiles of the clade Dinosauria.
In chemistry, a disulfide refers to a functional group with the structure R−S−S−R′.
The down of birds is a layer of fine feathers found under the tougher exterior feathers.
Dromaeosauridae is a family of feathered theropod dinosaurs.
Dust bathing (also called sand bathing) is an animal behavior characterized by rolling or moving around in dust, dry earth or sand, with the likely purpose of removing parasites from fur, feathers or skin.
Eagle is the common name for many large birds of prey of the family Accipitridae.
The eagle feather law provides many exceptions to federal wildlife laws regarding eagles and other migratory birds to enable American Indians to continue their traditional spiritual and cultural practices.
An egret is any of several herons, most of which are white or buff, and several of which develop fine plumes (usually milky white) during the breeding season.
Eiders are large seaducks in the genus Somateria.
An emulsion is a mixture of two or more liquids that are normally immiscible (unmixable or unblendable).
Enantiornithes is a group of extinct avialans ("birds" in the broad sense), the most abundant and diverse group known from the Mesozoic era.
In zoology, the epidermis is an epithelium (sheet of cells) that covers the body of an eumetazoan (animal more complex than a sponge).
Evolutionary developmental biology (informally, evo-devo) is a field of biological research that compares the developmental processes of different organisms to infer the ancestral relationships between them and how developmental processes evolved.
An exoskeleton (from Greek έξω, éxō "outer" and σκελετός, skeletós "skeleton") is the external skeleton that supports and protects an animal's body, in contrast to the internal skeleton (endoskeleton) of, for example, a human.
An eyelash or simply lash is one of the hairs that grows at the edge of the eyelid.
Feather development occurs in the epidermal layer of the skin in birds.
Feather holes often characteristically occur on wing and tail feathers of some small-bodied species of passerines.
For over 150 years, since scientific research began on dinosaurs in the early 1800s, dinosaurs were generally believed to be most closely related to squamata ("scaled reptiles"); the word "dinosaur", coined in 1842 by paleontologist Richard Owen, comes from the Greek for "fearsome lizard".
In Canada, the First Nations (Premières Nations) are the predominant indigenous peoples in Canada south of the Arctic Circle.
A fishing lure is a type of artificial fishing bait which is designed to attract a fish's attention.
Fletching is the fin-shaped aerodynamic stabilization device attached on arrows, crossbow bolts or darts, typically made from light, semi-flexible materials such as feathers.
Flight feathers (Pennae volatus) are the long, stiff, asymmetrically shaped, but symmetrically paired pennaceous feathers on the wings or tail of a bird; those on the wings are called remiges, singular remex, while those on the tail are called rectrices, singular rectrix.
Frank Michler Chapman (June 12, 1864 – November 15, 1945) was an American ornithologist and pioneering writer of field guides.
Gloger's rule is an ecogeographical rule which states that within a species of endotherms, more heavily pigmented forms tend to be found in more humid environments, e.g. near the equator.
Geese are waterfowl of the family Anatidae.
A grebe is a member of the order Podicipediformes and the only type of bird associated with this order.
Hair is a protein filament that grows from follicles found in the dermis.
The hair follicle is a dynamic organ found in mammalian skin.
A hairstyle, hairdo, or haircut refers to the styling of hair, usually on the human scalp.
Hawks are a group of medium-sized diurnal birds of prey of the family Accipitridae.
In thermodynamics, heat is energy transferred from one system to another as a result of thermal interactions.
Hen feathering in cocks is the occurrence of a genetically conditioned character in domestic fowl (Gallus gallus domesticus).
Heterodontosauridae is a family of early ornithischian dinosaurs that were likely among the most basal (primitive) members of the group.
In biology, homology is the existence of shared ancestry between a pair of structures, or genes, in different taxa.
A hoof, plural hooves or hoofs, is the tip of a toe of an ungulate mammal, strengthened by a thick, horny, keratin covering.
A horn is a permanent pointed projection on the head of various animals consisting of a covering of keratin and other proteins surrounding a core of live bone.
Hummingbirds are birds from the Americas that constitute the family Trochilidae.
A hydrogen bond is a partially electrostatic attraction between a hydrogen (H) which is bound to a more electronegative atom such as nitrogen (N), oxygen (O), or fluorine (F), and another adjacent atom bearing a lone pair of electrons.
The Indian peafowl or blue peafowl (Pavo cristatus), a large and brightly coloured bird, is a species of peafowl native to South Asia, but introduced in many other parts of the world.
The integumentary system comprises the skin and its appendages acting to protect the body from various kinds of damage, such as loss of water or abrasion from outside.
Iridescence (also known as goniochromism) is the phenomenon of certain surfaces that appear to gradually change colour as the angle of view or the angle of illumination changes.
Jeholornis (meaning "Jehol bird") is a genus of avialans that lived between approximately 122 and 120 million years ago during the early Cretaceous Period in China.
Juravenator is a genus of small (75 cm long) coelurosaurian theropod dinosaur, which lived in the area which would someday become the Jura mountains of Germany, about 151 or 152 million years ago.
Keratin is one of a family of fibrous structural proteins.
Kulindadromeus was a herbivorous dinosaur, a basal neornithischian from the Jurassic.
The Lacey Act of 1900, or simply the Lacey Act is a conservation law in the United States that prohibits trade in wildlife, fish, and plants that have been illegally taken, possessed, transported, or sold.
Some terms used for the feathers of poultry are identical to those used for feathers of other birds, while others are specific to poultry.
Louse (plural: lice) is the common name for members of the order Phthiraptera, which contains nearly 5,000 species of wingless insect.
Mammals are the vertebrates within the class Mammalia (from Latin mamma "breast"), a clade of endothermic amniotes distinguished from reptiles (including birds) by the possession of a neocortex (a region of the brain), hair, three middle ear bones, and mammary glands.
Maniraptora is a clade of coelurosaurian dinosaurs that includes the birds and the non-avian dinosaurs that were more closely related to them than to Ornithomimus velox.
Mate choice, also known as intersexual selection, is an evolutionary process in which selection is dependent on the attractiveness of an individual's phenotypic traits.
A mattress is a large, rectangular pad for supporting the reclining body, designed to be used as a bed or on a bed frame, as part of a bed.
Melanin (from μέλας melas, "black, dark") is a broad term for a group of natural pigments found in most organisms.
Microraptor (Greek, μικρός, mīkros: "small"; Latin, raptor: "one who seizes") was a genus of small, four-winged paravian dinosaurs.
In the geologic timescale, the Middle Triassic is the second of three epochs of the Triassic period or the middle of three series in which the Triassic system is divided.
In biology, moulting (British English), or molting (American English), also known as sloughing, shedding, or in many invertebrates, ecdysis, is the manner in which an animal routinely casts off a part of its body (often, but not always, an outer layer or covering), either at specific times of the year, or at specific points in its life cycle.
Native Americans, also known as American Indians, Indians, Indigenous Americans and other terms, are the indigenous peoples of the United States.
An oil spill is the release of a liquid petroleum hydrocarbon into the environment, especially the marine ecosystem, due to human activity, and is a form of pollution.
Ornithischia is an extinct clade of mainly herbivorous dinosaurs characterized by a pelvic structure similar to that of birds.
Ornithopods or members of the clade Ornithopoda are a group of ornithischian dinosaurs that started out as small, bipedal running grazers, and grew in size and numbers until they became one of the most successful groups of herbivores in the Cretaceous world, and dominated the North American landscape.
Ornithoscelida is a clade that includes various major groupings of dinosaurs.
Oviraptorosaurs ("egg thief lizards") are a group of feathered maniraptoran dinosaurs from the Cretaceous Period of what are now Asia and North America.
Paraves are a widespread group of theropod dinosaurs that originated in the Late Jurassic period.
Parrots, also known as psittacines, are birds of the roughly 393 species in 92 genera that make up the order Psittaciformes, found in most tropical and subtropical regions.
Pedopenna (meaning "foot feather") is a genus of small, feathered, maniraptoran dinosaur from the Daohugou Beds in China.
Penguins (order Sphenisciformes, family Spheniscidae) are a group of aquatic, flightless birds.
The pennaceous feather is a type of feather present in most modern birds and in some other species of maniraptoriform dinosaurs.
Pheasants are birds of several genera within the subfamily Phasianinae, of the family Phasianidae in the order Galliformes.
In biology, the term phoresis, also called phoresy, is an inter-species biological interaction in ecology and refers to a form of symbiosis where the symbiont, termed the phoront, is mechanically transported by its host.
In biology, phylogenetics (Greek: φυλή, φῦλον – phylé, phylon.
A pillow is a support of the body at rest for comfort, therapeutic, decoration or play.
A pin feather, sometimes called a "blood feather", is a developing feather on a bird.
Pinioning is the act of surgically removing one pinion joint, the joint of a bird's wing farthest from the body, to prevent flight.
Plumage ("feather") refers both to the layer of feathers that cover a bird and the pattern, colour, and arrangement of those feathers.
Plume hunting is the hunting of wild birds to harvest their feathers, especially the more decorative plumes which were sold for use as ornamentation, such as aigrettes in millinery.
Porphyrins (/phɔɹfɚɪn/ ''POUR-fer-in'') are a group of heterocyclic macrocycle organic compounds, composed of four modified pyrrole subunits interconnected at their α carbon atoms via methine bridges (.
A powder is a dry, bulk solid composed of a large number of very fine particles that may flow freely when shaken or tilted.
Predation is a biological interaction where a predator (a hunting animal) kills and eats its prey (the organism that is attacked).
Preening is a maintenance behaviour found in birds that involves the use of the bill to position feathers, interlock feather barbules that have become separated, clean plumage, and keep ectoparasites under check.
Proteins are large biomolecules, or macromolecules, consisting of one or more long chains of amino acid residues.
Psittacofulvin pigments are responsible for the bright-red, orange, and yellow colours of parrots.
Psittacosaurus ("parrot lizard") is a genus of extinct ceratopsian dinosaur from the Early Cretaceous of what is now Asia, existing between 126 and 101 million years ago.
Pterosaurs (from the Greek πτερόσαυρος,, meaning "winged lizard") were flying reptiles of the extinct clade or order Pterosauria.
A quill pen is a writing implement made from a moulted flight feather (preferably a primary wing-feather) of a large bird.
Rachis is a biological term for a main axis or "shaft" (from the Greek ράχις, backbone, spine).
A ratite is any of a diverse group of flightless and mostly large and long-legged birds of the infraclass Palaeognathae.
Refraction is the change in direction of wave propagation due to a change in its transmission medium.
Reptiles are tetrapod animals in the class Reptilia, comprising today's turtles, crocodilians, snakes, amphisbaenians, lizards, tuatara, and their extinct relatives.
Richard O. Prum is William Robertson Coe Professor of Ornithology, and Head Curator of Vertebrate Zoology at the Peabody Museum of Natural History at Yale University.
Saurischia (meaning "reptile-hipped" from the Greek (σαῦρος) meaning 'lizard' and (ἴσχιον) meaning 'hip joint') is one of the two basic divisions of dinosaurs (the other being Ornithischia).
Sauropodomorpha (from Greek, meaning "lizard-footed forms") is an extinct clade of long-necked, herbivorous, saurischian dinosaurs that includes the sauropods and their ancestral relatives.
In most biological nomenclature, a scale (Greek λεπίς lepis, Latin squama) is a small rigid plate that grows out of an animal's skin to provide protection.
Scansoriopterygidae (meaning "climbing wings") is an extinct family of climbing and gliding maniraptoran dinosaurs.
Scientific American (informally abbreviated SciAm) is an American popular science magazine.
Sexual dimorphism is the condition where the two sexes of the same species exhibit different characteristics beyond the differences in their sexual organs.
Sexual selection is a mode of natural selection where members of one biological sex choose mates of the other sex to mate with (intersexual selection), and compete with members of the same sex for access to members of the opposite sex (intrasexual selection).
A signal as referred to in communication systems, signal processing, and electrical engineering is a function that "conveys information about the behavior or attributes of some phenomenon".
A singing bird box (boîte à oiseau chanteur in French) is a box, usually rectangular-shaped, which contains within a miniature automaton singing bird concealed below an oval lid and activated by means of an operating lever.
Sinornithosaurus (derived from a combination of Latin and Greek, meaning 'Chinese bird-lizard') is a genus of feathered dromaeosaurid dinosaur from the early Cretaceous Period (early Aptian) of the Yixian Formation in what is now China.
Sinosauropteryx (meaning "Chinese reptilian wing") is a compsognathid dinosaur.
A sister group or sister taxon is a phylogenetic term denoting the closest relatives of another given unit in an evolutionary tree.
Skin is the soft outer tissue covering vertebrates.
A sleeping bag is an insulated covering for a person, essentially a lightweight quilt that can be closed with a zipper or similar means to form a tube, which functions as lightweight, portable bedding in situations where a person is sleeping outdoors (e.g. when camping, hiking, hill walking or climbing).
Stridulation is the act of producing sound by rubbing together certain body parts.
Structural coloration is the production of colour by microscopically structured surfaces fine enough to interfere with visible light, sometimes in combination with pigments.
In biology, a taxon (plural taxa; back-formation from taxonomy) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit.
The New York Times (sometimes abbreviated as The NYT or The Times) is an American newspaper based in New York City with worldwide influence and readership.
The Quarterly Review of Biology is a peer reviewed scientific journal covering all aspects of biology.
The Wilson Journal of Ornithology (until 2006 The Wilson Bulletin) is a quarterly scientific journal published by the Wilson Ornithological Society.
Therizinosaurs (or segnosaurs) were theropod dinosaurs belonging to the clade Therizinosauria.
Thermal insulation is the reduction of heat transfer (i.e. the transfer of thermal energy between objects of differing temperature) between objects in thermal contact or in range of radiative influence.
Theropoda (or, from Greek θηρίον "wild beast" and πούς, ποδός "foot") or theropods are a dinosaur suborder characterized by hollow bones and three-toed limbs.
The Thyreophora ("shield bearers", often known simply as "armored dinosaurs" - Greek: θυρεος, thyreos, a large oblong shield, like a door and φορεω, I carry) were a subgroup of the ornithischian dinosaurs.
Tianyulong (Chinese: 天宇龍; Pinyin: tiānyǔlóng; named for the Shandong Tianyu Museum of Nature where the holotype fossil is housed) was a genus of heterodontosaurid ornithischian dinosaur.
Troodontidae is a family of bird-like theropod dinosaurs.
Turacin is a naturally occurring red pigment that is 6% copper complexed to uroporphyrin III.
The turacos make up the bird family Musophagidae (literally "banana-eaters"), which includes plantain-eaters and go-away-birds.
Turacoverdin is a unique copper uroporphyrin pigment responsible for the bright green coloration of several birds of the family Musophagidae, most notably the turaco.
The turkey is a large bird in the genus Meleagris, which is native to the Americas.
Tyrannosauroidea (meaning 'tyrant lizard forms') is a superfamily (or clade) of coelurosaurian theropod dinosaurs that includes the family Tyrannosauridae as well as more basal relatives.
Tyrannosaurus is a genus of coelurosaurian theropod dinosaur.
Ultraviolet (UV) is electromagnetic radiation with a wavelength from 10 nm to 400 nm, shorter than that of visible light but longer than X-rays.
The uropygial gland, informally known as the preen gland or the oil gland, is a bilobate sebaceous gland possessed by the majority of birds.
Vertebrates comprise all species of animals within the subphylum Vertebrata (chordates with backbones).
Victorian fashion comprises the various fashions and trends in British culture that emerged and developed in the United Kingdom and the British Empire throughout the Victorian era, roughly from the 1830s through the first decade of the 1900s.
Whiskers or vibrissae (singular: vibrissa) are a type of mammalian hair that are typically characterised, anatomically, by their large length, large and well-innervated hair follicle, and by having an identifiable representation in the somatosensory cortex of the brain.
A white feather has been a traditional symbol of cowardice, used and recognised especially within the British Army and in countries of the British Empire since the 18th century, especially by patriotic groups, including some early feminists, in order to shame men who were not soldiers.
The whooping crane (Grus americana), the tallest North American bird, is an endangered crane species named for its whooping sound.
The willow flycatcher (Empidonax traillii) is a small insect-eating, neotropical migrant bird of the tyrant flycatcher family.
Yutyrannus (meaning "feathered tyrant") is a genus of tyrannosauroid dinosaurs which contains a single known species, Yutyrannus huali.