T Tapeworms Segmented parasitic flatworms; also referred to as cestodes. Teal  Small, swift-flying waterfowl of the genus Anas. Tegument The covering of an organ or the body. Tenosynovitis Inflammation of the tendon sheath. Teratogenic  Causing embryonic deformities due to abnormal differentiation and development of cells. Thermoregulation Regulation of the internal temperature of the body by various physiological processes. Thorax The part of the body between the neck and the respiratory diaphragm (in mammals), encased by the ribs. Thorny-headed worms Acanthocephalan parasites Three Parts Dark In canaries showing only one quarter of it’s body with light feathering. To be 75% dark. Tick or Ticked A bird possessing a small single dark mark anywhere on the body. Thymus gland A lymph-gland-like organ involved in cellular immunity, located in the neck or upper thoracic cavity. Toenails Should always be kept trim and neat except in the case of Parisian Frills whose nails should be long and curly like a corkscrew Torticollis Twisting or rotation of the neck causing an unnatural position of the head. Toxic Poisonous. Toxicosis  The condition of being poisoned. Trematodes  Flat, unsegmented parasitic worms; flatworms, flukes. Trichomonaisis (Trichomonids) Protozoan parasites of the genus Trichomonas. Tumor (neoplasm) Growths within organs and tissues of the body that result from the abnormal progressive multiplication of cells in a manner uncontrolled by the body.
R Range The geographic distribution of a population or the area within which an individual animal moves (as in home range). Raptors Synonymous with birds of prey. Birds, including hawks, owls, falcons and eagles, that feed on flesh. Recessive Refferring to an altered gene which does not shows its effect if the bird carrying that gene also has an unaltered gene. Recessive White Another mutations that gave rise to white canaries. The mode of inheritance is quite different from that of the Dominant White. The Recessive White canaries don’t haveany fat-colour. Read more about Lipochrom canaries> Respiratory system  The collection of organs that provide oxygen to the organism and result in the release of carbon dioxide; typically, the trachia and lungs. Rolls  Applied to several song passages of the Roller canary in which the tempo of the beats is so fast as to make them almost inseparable to the human ear. Rookery A nesting area for some colonial birds, such as herons and egrets. Roost sites Typically, locations where birds congregate at night in trees and other locations. Roundworms see Nematodes. Rowing Of the Lizard: the markings on the bird’s breast and flanks formed in a similar manner to the spangling on the back. S Satinette Another fairly recent mutation in coloured canaries which, like the ino, has red eyes. Self A canary with pigmentation in all it’s feathers Septicemia The presence of pathogenic microorganisms or toxins in the blood. Sex-linked Any gene on the X-chromosome. Single-factor in Gouldian Finches Only one gene is present for a particular characteristic in a homologous pair. Abbreviated SF and occasionally used interchangeably with heterozygous with reference to autosomal traits. read more about the Genetic of Gouldian Finches> Shorebirds Birds that feed at the edge of shallow water, along mudflats, and in shallow wetlands. Typically, these birds feed on invertebrates and include such species as American avocet, black-necked stilt, curlews, plovers, phalaropes, sandpipers, yellowlegs, and sanderling. Songbirds Small perching and singing birds, typically of the order Passeriformes, including sparrows, finches, and cardinals. Spangling The essential feature of Lizard canaries, which is formed by a series of perfectly straight and parallel rows of black crescent shaped spots running down the back of the bird and standing out distinctly from the ground colour. Split Usually used to describe those traits which are “hidden” (recessive) in a heterozygous situation. International abbreviated as “/“ and usually used to refer to autosomal traits. Spore Refers to a resistant stage, usually of bacteria or fungi, by which some microorganisms urvive unfavorable environmental conditions and then develop into active life forms during favorable environmental conditions. Sporogony Sporulation that involves multiple fission of a sporont (schizogony), resulting in the production of a sporocysts and sporozoites. Sporont A zygote of coccidian protozoa. Sporozoite The elongate nucleated infective stage of coccidian protozoan parasites. Sporulation  The formation or libertion of spores. Squab A nestling pigeon that has not fledged. Stagonopleura Stagonopleurais is a genus of estrildid finches from Australia. Sometimes the genus is called Emblema. -    Stagonopleura bella (Beautiful firetail finch) - Stagonopleura oculata (Red-eared firetail finch) - Stagonopleura guttata (Diamond firetail finch) Sternum The breastbone Striations The essential feature in Melanin Canaries are the striations on the back and flanks. (Eumelanin) The type, color and shape of the Eumelanin depends on the particular mutation. Subcutaneous Under the skin. Superciliary stripe of a bird Name of or relating to the eyebrow or the region over the eye of a bird. Systemic Affecting the entire body.
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BIRDS2U DATABASE

A-B; C-D; E-H; I-L; M-P; R-Z
U Ulceration - crater-like lesions in the skin and other tissues. Unflighted In current year canaries a bird that has not moulted out it’s flighted feathers. Upland gamebirds Game birds found in terrestrial habitats. Includes species such as ring-necked pheasant, quails, grouse, wild turkey, etc. Upper digestive tract The portion of the gastrointestinal tract that extends from the anterior opening of the esophagus in the region of the mouth to the stomach, but not including the intestines. Ureter The tubular structure that transports urates from the kidneys to the cloaca of birds. V Variegated In canaries a bird showing any form of melanistic marking upon it’s body from a tick to three parts dark. Vascular system Blood circulation system. Vector An insect or other living organism that carries and transmits a disease agent from one animal to another. Vegetative form In bacteria, an active, growing, multiplying stage of development as opposed to a "spore," or a resistant resting stage. Velogenic Refers to highly virulent strains of Newcastle disease virus that are capable of producing severe disease in the host. Vent The external opening of the cloaca. Ventriculus The stomach of a bird. Verminous peritonitis Inflammation of the peritoneal cavity caused by parasites, usually nematodes. Viremia The presence of virus in the blood. Virulence The disease-producing ability of a microorganism, generally indicated by the severity of the infection in the host and the ability of the agent to invade or cause damage or both to the host's tissues. Virulent The degree to which an infectious agent produces adverse effects on the host; a highly virulent organism may produce severe disease, including death. Virus shedding Discharge of virus from body openings by way of exudate, excrement, or other body wastes or discharges. Viscera The internal organs, particularly of the thoracic and abdominal cavities. Viscerotropic Possessing an affinity for visceral organs; a disease that acts primarily on the soft internal tissues of the body such as the heart, lungs, liver, and digestive tract.  
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W Wading birds Long-necked, long-legged birds that feed by wading in wetlands and catching prey with their bills. Includes egrets, herons, ibises, roseate spoonbills, flamingos, and bitterns. Waistcoat see Jabot Waterbirds Birds that require aquatic habitat. Waterfowl Species of the Family Anatidae; ducks, geese and swans. Does not include American coot. Worms Worms are also a kind of parasite. When ingested, they germinate, reproduce and can disturb the system of the organism. (see also:  Gapeworm, Nematodes, Roundworm, Tapeworm ) X X-linked Referred to a gene that is passed on with the X-chromosome. Male birds have two X-chromosomes, while female birds have one X-chromosome. Y Yeasts Single-celled, usually rounded fungi that produce by budding. Z Zygote A cell resulting from the union of a male and a female gamete, until it divides; the fertilized ovum Zoonotic disease Zoonotic Disease also called Zoonose or Zoonosis is any disease or infection that is naturally transmissible from animals to humans.