|
Archer's Buzzard
Archer's buzzard (''Buteo augur archeri'') is a subspecies of the augur buzzard that is endemic to Somalia. The bird's common name and Latin binomial commemorate the British explorer and colonial official Sir Geoffrey Francis Archer. Taxonomy The status of this taxon has been disputed, with some taxonomists considering this species, the jackal buzzard, and the augur buzzard to be the same species. Previously, many taxonomists consider them all to be distinct, having different calls, different home ranges and slight variations in plumage. In 2013, BirdLife International synonymized it with the augur buzzard. The International Ornithological Congress also followed in 2022, but tentatively classified it as a subspecies of the augur buzzard. However, it may simply represent a color morph. Description It is long and the adult has distinctive reddish plumage. The adult Archer's buzzard is strikingly plumaged. It is dark brown above with a dark tail. It has chestnut underparts, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Lutley Sclater
William Lutley Sclater (23 September 1863 – 4 July 1944) was a British zoologist and museum director. He was the son of Philip Lutley Sclater and was named after his paternal grandfather, also William Lutley Sclater. Life William's mother, Jane Anne Eliza, was the daughter of Sir David Hunter-Blair, 3rd Baronet and a sister-in-law of Sir Walter Elliot the Indian naturalist. Sclater received his Master of Arts degree in Natural Science from Keble College at Oxford in 1885. He worked for two years as a Demonstrator at Cambridge under Professor Adam Sedgwick and went on a collecting trip to British Guiana in 1886. He published about birds in ''The Ibis'' in 1887. In the same year, he received an appointment as a deputy superintendent of the Indian Museum in Calcutta from 1887 until 1891, when he joined the science faculty of Eton College. It was at Eton that he met his future wife, Charlotte Mellen Stephenson, an American divorcée whose two sons attended the school. The cou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subspecies
In biological classification, subspecies is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics ( morphology), but that can successfully interbreed. Not all species have subspecies, but for those that do there must be at least two. Subspecies is abbreviated subsp. or ssp. and the singular and plural forms are the same ("the subspecies is" or "the subspecies are"). In zoology, under the International Code of Zoological Nomenclature, the subspecies is the only taxonomic rank below that of species that can receive a name. In botany and mycology, under the International Code of Nomenclature for algae, fungi, and plants, other infraspecific ranks, such as variety, may be named. In bacteriology and virology, under standard bacterial nomenclature and virus nomenclature, there are recommendations but not strict requirements for recognizing other important infraspecific ranks. A taxonomist decides whe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Augur Buzzard
The augur buzzard (''Buteo augur'') is a fairly large African bird of prey. This species is distinct in typical adult plumage for its blackish back, whitish underside and orange-red tail, however a dark morph is known while juvenile augur buzzards are generally rather brown in colour. This member of the ''Buteo'' genus is distributed in several parts of the central and southern Africa, normally being found from Ethiopia to southern Angola and central Namibia. It is resident and non-migratory throughout its range. This is a species of mountains (most typically at about altitude, but up to ), and adjacent savannah and grassland. This is a typical buteonine raptor, being a generalist predator which tends to prefer small mammals supplemented by reptiles and birds among various prey items.Ferguson-Lees, J., & Christie, D. A. (2001). ''Raptors of the world''. Houghton Mifflin Harcourt. Taxonomy The taxonomy on this species is not settled, with some taxonomists considering this s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Somalia
Somalia, , Osmanya script: 𐒈𐒝𐒑𐒛𐒐𐒘𐒕𐒖; ar, الصومال, aṣ-Ṣūmāl officially the Federal Republic of SomaliaThe ''Federal Republic of Somalia'' is the country's name per Article 1 of thProvisional Constitution, (; ), is a country in the Horn of Africa. The country is bordered by Ethiopia to the west, Djibouti to the northwest, the Gulf of Aden to the north, the Indian Ocean to the east, and Kenya to the southwest. Somalia has the longest coastline on Africa's mainland. Its terrain consists mainly of plateaus, plains, and highlands. Hot conditions prevail year-round, with periodic monsoon winds and irregular rainfall. Somalia has an estimated population of around million, of which over 2 million live in the capital and largest city Mogadishu, and has been described as Africa's most culturally homogeneous country. Around 85% of its residents are ethnic Somalis, who have historically inhabited the country's north. Ethnic minorities are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geoffrey Francis Archer
Sir Geoffrey Francis Archer (4 July 1882 – 1 May 1964) was an English ornithologist, big game hunter and colonial official. He was Commissioner and then Governor of British Somaliland between 1913 and 1922, and was responsible for finally quelling the twenty-year-long Dervish resistance. From 1922 to 1925, Archer was appointed Governor of Uganda. He later served as Governor-General of the Anglo-Egyptian Sudan between 1925 and 1926. In the Sudan, Archer paid a formal but friendly visit to Abd al-Rahman al-Mahdi, son of the self-proclaimed Mahdi Muhammad Ahmad, whose forces had killed General Gordon in 1885. Abd al-Rahman was leader of the neo-Mahdists in Sudan. Archer was eventually forced to resign due to the resultant flap, and spent the remainder of his career organising salt works in India. Early career In 1901, the nineteen-year-old Archer joined his uncle Frederick John Jackson, the acting high commissioner in Uganda. His uncle sent him on an ornithological col ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jackal Buzzard
The jackal buzzard (''Buteo rufofuscus'') is a fairly large African bird of prey. The taxonomy of this species has caused some confusion in the past and it almost certainly belongs in a species complex with other African ''Buteo'' species. Some taxonomists have considered this species, the Archer's buzzard, and the augur buzzard to be the same superspecies. Many taxonomists consider them all to be distinct, having different calls, different home ranges and variations in plumage. This is a species that lives among mountains, and on adjacent savanna and grassland. It is resident and non-migratory throughout its range. Description The jackal buzzard is one of the two larger ''Buteo'' species native to Africa, alongside its close cousin, the augur buzzard. Adults may measure in total length. In weight, one survey found 55 unsexed birds to weight from while another found seven males to weigh from and eleven females to weigh from .Ferguson-Lees, J., & Christie, D. A. (2001). ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. However, only about 14% of these had been described by 2011. All species (except viruses) are given a two-part name, a "binomial". The first part of a binomial is the genus to which the species belongs. The second part is called the specific name or the specific epithet (in botanical nomenclature, also sometimes i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BirdLife International
BirdLife International is a global partnership of non-governmental organizations that strives to conserve birds and their habitats. BirdLife International's priorities include preventing extinction of bird species, identifying and safeguarding important sites for birds, maintaining and restoring key bird habitats, and empowering conservationists worldwide. It has a membership of more than 2.5 million people across 116 country partner organizations, including the Royal Society for the Protection of Birds, the Wild Bird Society of Japan, the National Audubon Society and American Bird Conservancy. BirdLife International has identified 13,000 Important Bird and Biodiversity Areas and is the official International Union for Conservation of Nature’s Red List authority for birds. As of 2015, BirdLife International has established that 1,375 bird species (13% of the total) are threatened with extinction ( critically endangered, endangered or vulnerable). BirdLife International ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polymorphism (biology)
In biology, polymorphism is the occurrence of two or more clearly different morphs or forms, also referred to as alternative ''phenotypes'', in the population of a species. To be classified as such, morphs must occupy the same habitat at the same time and belong to a panmictic population (one with random mating). Ford E.B. 1965. ''Genetic polymorphism''. Faber & Faber, London. Put simply, polymorphism is when there are two or more possibilities of a trait on a gene. For example, there is more than one possible trait in terms of a jaguar's skin colouring; they can be light morph or dark morph. Due to having more than one possible variation for this gene, it is termed 'polymorphism'. However, if the jaguar has only one possible trait for that gene, it would be termed "monomorphic". For example, if there was only one possible skin colour that a jaguar could have, it would be termed monomorphic. The term polyphenism can be used to clarify that the different forms arise from the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bird Migration
Bird migration is the regular seasonal movement, often north and south along a flyway, between breeding and wintering grounds. Many species of bird migrate. Migration carries high costs in predation and mortality, including from hunting by humans, and is driven primarily by the availability of food. It occurs mainly in the northern hemisphere, where birds are funneled onto specific routes by natural barriers such as the Mediterranean Sea or the Caribbean Sea. Migration of species such as storks, turtle doves, and swallows was recorded as many as 3,000 years ago by Ancient Greek authors, including Homer and Aristotle, and in the Book of Job. More recently, Johannes Leche began recording dates of arrivals of spring migrants in Finland in 1749, and modern scientific studies have used techniques including bird ringing and satellite tracking to trace migrants. Threats to migratory birds have grown with habitat destruction, especially of stopover and wintering sites, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subspecies
In biological classification, subspecies is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics ( morphology), but that can successfully interbreed. Not all species have subspecies, but for those that do there must be at least two. Subspecies is abbreviated subsp. or ssp. and the singular and plural forms are the same ("the subspecies is" or "the subspecies are"). In zoology, under the International Code of Zoological Nomenclature, the subspecies is the only taxonomic rank below that of species that can receive a name. In botany and mycology, under the International Code of Nomenclature for algae, fungi, and plants, other infraspecific ranks, such as variety, may be named. In bacteriology and virology, under standard bacterial nomenclature and virus nomenclature, there are recommendations but not strict requirements for recognizing other important infraspecific ranks. A taxonomist decides whe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buteo
''Buteo'' is a genus of medium to fairly large, wide-ranging raptors with a robust body and broad wings. In the Old World, members of this genus are called "buzzards", but " hawk" is used in the New World (Etymology: ''Buteo'' is the Latin name of the common buzzard). As both terms are ambiguous, buteo is sometimes used instead, for example, by the Peregrine Fund. Characteristics Buteos are fairly large birds. Total length can vary from and wingspan can range from . The lightest known species is the roadside hawk, at an average of although the lesser known white-rumped and Ridgway's hawks are similarly small in average wingspan around , and average length around in standard measurements. The largest species in length and wingspan is the upland buzzard, which averages around in length and in wingspan. The upland is rivaled in weight and outsized in foot measurements and bill size by the ferruginous hawk. In both of these largest buteos, adults typically weigh over , an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
_immature_(32126652941).jpg "Click for more on -> Jackal Buzzard")
