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Bat Hawk
The bat hawk (''Macheiramphus alcinus'') is a raptor found in sub-Saharan Africa and south Asia to New Guinea. It is named for its diet, which consists mainly of bats. It requires open space in which to hunt, but will live anywhere from dense rainforest to semi-arid veld. Description The bat hawk is a slender, medium-sized bird of prey, usually about 45 cm long. It has long wings and a falcon-like silhouette while in flight. Adults are dark brown or black, with a white patch on the throat and chest, and have a white streak above and below each eye. Juveniles are mottled brown and have more white plumage than adults. Behaviour Hunting Bats are the usual prey of the bat hawk, although they may eat small birds, such as swallows, swifts, and nightjars, or even insects. They hunt by chasing their prey at high speeds in flight. 49.3% of their hunts are successful. Bats are captured by the use of small talons, and swallowed whole immediately in flight. Hunting methods may be si ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
KwaZulu-Natal
KwaZulu-Natal (, also referred to as KZN and known as "the garden province") is a province of South Africa that was created in 1994 when the Zulu bantustan of KwaZulu ("Place of the Zulu" in Zulu) and Natal Province were merged. It is located in the southeast of the country, with a long shoreline on the Indian Ocean and sharing borders with three other provinces and the countries of Mozambique, Eswatini and Lesotho. Its capital is Pietermaritzburg, and its largest city is Durban. It is the second-most populous province in South Africa, with slightly fewer residents than Gauteng. Two areas in KwaZulu-Natal have been declared UNESCO World Heritage Sites: the iSimangaliso Wetland Park and the uKhahlamba Drakensberg Park. These areas are extremely scenic as well as important to the surrounding ecosystems. During the 1830s and early 1840s, the northern part of what is now KwaZulu-Natal was established as the Zulu Kingdom while the southern part was, briefly, the Boer Natalia Repu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Insect
Insects (from Latin ') are pancrustacean hexapod invertebrates of the class Insecta. They are the largest group within the arthropod phylum. Insects have a chitinous exoskeleton, a three-part body ( head, thorax and abdomen), three pairs of jointed legs, compound eyes and one pair of antennae. Their blood is not totally contained in vessels; some circulates in an open cavity known as the haemocoel. Insects are the most diverse group of animals; they include more than a million described species and represent more than half of all known living organisms. The total number of extant species is estimated at between six and ten million; In: potentially over 90% of the animal life forms on Earth are insects. Insects may be found in nearly all environments, although only a small number of species reside in the oceans, which are dominated by another arthropod group, crustaceans, which recent research has indicated insects are nested within. Nearly all insects hatch from eggs. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hawks
Hawks are birds of prey of the family Accipitridae. They are widely distributed and are found on all continents except Antarctica. * The subfamily Accipitrinae includes goshawks, sparrowhawks, sharp-shinned hawks and others. This subfamily are mainly woodland birds with long tails and high visual acuity. They hunt by dashing suddenly from a concealed perch. * In America, members of the ''Buteo'' group are also called hawks; this group is called buzzards in other parts of the world. Generally, buteos have broad wings and sturdy builds. They are relatively larger-winged, shorter-tailed and fly further distances in open areas than accipiters. Buteos descend or pounce on their prey rather than hunting in a fast horizontal pursuit. The terms ''accipitrine hawk'' and ''buteonine hawk'' are used to distinguish between the types in regions where ''hawk'' applies to both. The term ''"true hawk"'' is sometimes used for the accipitrine hawks in regions where ''buzzard'' is preferred fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Code Of Zoological Nomenclature
The International Code of Zoological Nomenclature (ICZN) is a widely accepted convention in zoology that rules the formal scientific naming of organisms treated as animals. It is also informally known as the ICZN Code, for its publisher, the International Commission on Zoological Nomenclature (which shares the acronym "ICZN"). The rules principally regulate: * How names are correctly established in the frame of binominal nomenclature * Which name must be used in case of name conflicts * How scientific literature must cite names Zoological nomenclature is independent of other systems of nomenclature, for example botanical nomenclature. This implies that animals can have the same generic names as plants (e.g. there is a genus ''Abronia'' in both animals and plants). The rules and recommendations have one fundamental aim: to provide the maximum universality and continuity in the naming of all animals, except where taxonomic judgment dictates otherwise. The code is meant to guid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Commission On Zoological Nomenclature
The International Commission on Zoological Nomenclature (ICZN) is an organization dedicated to "achieving stability and sense in the scientific naming of animals". Founded in 1895, it currently comprises 26 commissioners from 20 countries. Organization The ICZN is governed by the "Constitution of the ICZN", which is usually published together with the ICZN Code. Members are elected by the Section of Zoological Nomenclature, established by the International Union of Biological Sciences (IUBS). The regular term of service of a member of the Commission is six years. Members can be re-elected up to a total of three full six-year terms in a row. After 18 continuous years of elected service, a break of at least three years is prescribed before the member can stand again for election. Activities Since 2014, the work of the Commission is supported by a small secretariat based at the National University of Singapore, in Singapore. Previously, the secretariat was based in London and fu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phillip Clancey
Phillip Alexander Clancey (26 September 1917 – 18 July 2001) was a leading authority on the ornithology of South Africa. Background and education Phillip Clancey was born, brought up and educated in Glasgow, Scotland. He studied at the Glasgow School of Art where his artistic skills were developed. Military service Clancey served in the 51st (Highland) Division with the Allied forces in Sicily and Italy during World War II, narrowly escaping death and being deafened in one ear by an artillery explosion. Following his death in 2001, Clancey's military medals, together with his "Gill Memorial Medal" were auctioned by City Coins, Cape Town, in 2006, on behalf of the Clancey Estate. These medals, including the Gill Memorial Medal were purchased on the auction by David R. Bennett - Chairman of the Durban Natural Science Museum Trust, and the medals now form part of the Bennett Military Medal Collection. Clancey's group of six military medals are to (Service Number) 913613 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Richard Kendall Brooke
Richard Kendall Brooke (1930 – 12 May 1996) was an Indian-born British ornithologist who mostly worked in Zimbabwe. Biography Brooke was born in India where his father served in the British Army. His academic career began at Rhodes University in Grahamstown where he took a bachelor's degree in theology. Later he pursued a career as a minor civil servant with a government department in Southern Rhodesia. His real interests, however, already lay with ornithology. In 1972 he accepted an invitation to join the staff of the Durban Natural Science Museum, aware that he needed to obtain a higher degree, either a Master's degree, master's or a doctorate, to maintain the position. His submitted thesis was queried by a prominent United States ornithologist who offered to assist him in working on it. Brooke could have made the changes suggested but he was vehemently opposed to revising any part of his text, insisting that it was more than adequate. He then left the Durban Museum an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dean Amadon
Dean Arthur Amadon (June 5, 1912 – January 12, 2003) was an American ornithologist and an authority on birds of prey. Amadon was born in Milwaukee, Wisconsin to Arthur and Mary Amadon. He received a BS from Hobart College in 1934 and a Ph.D. from Cornell University in 1947. In 1937 he joined the American Museum of Natural History in New York City and was Chairman of the Department of Ornithology there from 1957 until 1973. In 1942, he married Octavia Gardella and had two daughters: Susan Avis and Emily Yvonne. Amadon was a member of the American Association for the Advancement of Science, president of the American Ornithologists' Union from 1964 to 1966 and Linnaean Society of New York. He joined The Explorers Club in 1959. His books included ''Eagles, Hawks and Falcons of the World'' (1968) with Leslie H. Brown, and ''Curassows and Related Birds'' (1973) with Jean Delacour. He died on January 12, 2003, in his home at 25 Kenwood Road, Tenafly, New Jersey.Saxon, Wolfgang"Dean ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Herbert Girton Deignan
Herbert Girton Deignan (December 5, 1906 – March 15, 1968) was an American ornithologist who worked extensively on the birds of Thailand. Deignan was born in New Jersey, the son of Harry Francis and Anna Galena. He grew up in Pennsylvania and schooled in Mercersburg Academy before going to Princeton where he graduated with an Arts Baccalaureate in 1928. He became interested in birds early on and got in contact with Charles H Rogers, curator of the Princeton collections. He became interested in Thailand (Siam) and after graduating he took up a position in the Chiangmai college in northern Siam as a teacher of English. He stayed there from 1928 to 1932, collecting birds in the region that he sent back to Charles Rogers at Princeton. Deignan returned to the United States in 1932. He held a temporary assignment at the US National Museum thanks to Alexander Wetmore. He then took a position at the Library of Congress from 1934 to 1935, and his familiarity with Asian languages helped ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Least Concern
A least-concern species is a species that has been categorized by the International Union for Conservation of Nature (IUCN) as evaluated as not being a focus of species conservation because the specific species is still plentiful in the wild. They do not qualify as threatened, near threatened, or (before 2001) conservation dependent. Species cannot be assigned the "Least Concern" category unless they have had their population status evaluated. That is, adequate information is needed to make a direct, or indirect, assessment of its risk of extinction based on its distribution or population status. Evaluation Since 2001 the category has had the abbreviation "LC", following the IUCN 2001 Categories & Criteria (version 3.1). Before 2001 "least concern" was a subcategory of the "Lower Risk" category and assigned the code "LR/lc" or lc. Around 20% of least concern taxa (3261 of 15636) in the IUCN database still use the code "LR/lc", which indicates they have not been re-evaluate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fledge
Fledging is the stage in a flying animal's life between hatching or birth and becoming capable of flight. This term is most frequently applied to birds, but is also used for bats. For altricial birds, those that spend more time in vulnerable condition in the nest, the nestling and fledging stage can be the same. For precocial birds, those that develop and leave the nest quickly, a short nestling stage precedes a longer fledging stage. All birds are considered to have fledged when the feathers and wing muscles are sufficiently developed for flight. A young bird that has recently fledged but is still dependent upon parental care and feeding is called a fledgling. People often want to help fledglings, as they appear vulnerable, but it is best to leave them alone. The USA National Phenology Network defines the phenophase (or life cycle stage) of fledged young for birds as "One or more young are seen recently departed from the nest. This includes young incapable of sustained fli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Avian Incubation
Egg incubation is the process by which an egg, of oviparous (egg-laying) animals, develops an embryo within the egg, after the egg's formation and ovipositional release. Egg incubation is done under favorable environmental conditions, possibly by brooding and hatching the egg. Multiple and various factors are vital to the incubation of various species of animal. In many species of reptile for example, no fixed temperature is necessary, but the actual temperature determines the sex ratio of the offspring. In birds in contrast, the sex of offspring is genetically determined, but in many species a constant and particular temperature is necessary for successful incubation. Especially in poultry, the act of sitting on eggs to incubate them is called brooding. The action or behavioral tendency to sit on a clutch of eggs is also called broodiness, and most egg-laying breeds of poultry have had this behavior selectively bred out of them to increase production. Avian incubation A wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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