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Jackson's Hornbill
Jackson's hornbill (''Tockus jacksoni'') is a species of hornbill in the family Bucerotidae. It is only found in North West Kenya and North East Uganda. Except for the dense white spots on the wing-coverts, it resembles, and is often considered a subspecies of, Von der Decken's hornbill Von der Decken's hornbill (''Tockus deckeni'') is a hornbill found in East Africa, especially to the east of the East African Rift, from Ethiopia south to Tanzania. It is found mainly in thorn scrub and similar arid habitats. Jackson's hornbill i .... References Tockus Birds of East Africa Birds described in 1891 Taxonomy articles created by Polbot {{Bucerotiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Baringo
Lake Baringo is, after Lake Turkana, the most northern of the Kenyan Rift Valley lakes, with a surface area of and an elevation of . The lake is fed by several rivers: the Molo River, Molo, Perkerra River, Perkerra and Ol Arabel. It has no obvious outlet; the waters are assumed to seep through lake sediments into the Fault (geology), faulted volcanic bedrock. It is one of the two freshwater lakes in the Rift Valley in Kenya, the other being Lake Naivasha. See "Kenya designates freshwater lake in Great Rift Valley," aRamsar 2009 - 2002 The lake is in a remote hot and dusty area with over 470 species of birds, occasionally including migrating flamingos. A Goliath heronry is located on a rocky islet in the lake known as Gibraltar. The existence of Lake Baringo was first reported in Europe by Ludwig Krapf and J. Rebmann, German missionaries stationed at Mombasa, about 1850; in J. H. Speke’s map of the Nile sources (1863) Baringo is confused with Kavirondo Gulf of Victoria Nyanza; ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kenya
Kenya, officially the Republic of Kenya, is a country located in East Africa. With an estimated population of more than 52.4 million as of mid-2024, Kenya is the 27th-most-populous country in the world and the 7th most populous in Africa. Kenya's capital and largest city is Nairobi. Its second-largest and oldest city is Mombasa, a major port city located on Mombasa Island. Other major cities within the country include Kisumu, Nakuru & Eldoret. Going clockwise, Kenya is bordered by South Sudan to the northwest (though much of that border includes the disputed Ilemi Triangle), Ethiopia to the north, Somalia to the east, the Indian Ocean to the southeast, Tanzania to the southwest, and Lake Victoria and Uganda to the west. Kenya's geography, climate and population vary widely. In western, rift valley counties, the landscape includes cold, snow-capped mountaintops (such as Batian, Nelion and Point Lenana on Mount Kenya) with vast surrounding forests, wildlife and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Robert Ogilvie-Grant
William Robert Ogilvie-Grant (25 March 1863 – 26 July 1924) was a Scottish ornithologist. Early life and education Grant was born on 25 March 1863 as the second son of Capt. the Hon. George Henry Essex Ogilvy-Grant, of Easter Elchies, Craigellachie, Scotland, of the 42nd Regiment of Foot, 42nd Highlanders, sixth son of Francis Ogilvy-Grant, 6th Earl of Seafield, and daughter of Sir William Gordon-Cumming, 2nd Baronet. Ogilvie-Grant was educated at Fettes College, Edinburgh, where he studied zoology and anatomy. He also studied at Cargilfield Preparatory School. Career In 1882 he became an Assistant at the Natural History Museum, London, Natural History Museum. He studied ichthyology under Albert C. L. G. Günther, and in 1885 he was put in temporary charge of the Ornithological Section under Richard Bowdler Sharpe's visit to India. He remained in that department, eventually becoming Curator of Birds from 1909 to 1918. He also succeeded Bowdler Sharpe as editor of the ''Bull ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jackson's Hornbill (Tockus Jacksoni) Male Head
Jackson's hornbill (''Tockus jacksoni'') is a species of hornbill in the family Bucerotidae. It is only found in North West Kenya and North East Uganda. Except for the dense white spots on the wing-coverts, it resembles, and is often considered a subspecies of, Von der Decken's hornbill. References Tockus Birds of East Africa Birds described in 1891 Taxonomy articles created by Polbot {{Bucerotiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hornbill
Hornbills are birds found in tropical and subtropical Africa, Asia and Melanesia of the family Bucerotidae. They are characterized by a long, down-curved bill which is frequently brightly coloured and sometimes has a horny casque on the upper mandible. Hornbills have a two-lobed kidney. They are the only birds in which the first and second neck vertebrae (the atlas and axis respectively) are fused together; this probably provides a more stable platform for carrying the bill. The family is omnivorous, feeding on fruit and small animals. They are monogamous breeders nesting in natural cavities in trees and sometimes cliffs. A number of mainly insular species of hornbill with small ranges are threatened with extinction, mainly in Southeast Asia. In the Neotropical realm, toucans occupy the hornbills' ecological niche, an example of convergent evolution. Despite their close appearances, the two groups are not very closely related, with toucans being allied with the woodpeckers, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Uganda
Uganda, officially the Republic of Uganda, is a landlocked country in East Africa. It is bordered to the east by Kenya, to the north by South Sudan, to the west by the Democratic Republic of the Congo, to the south-west by Rwanda, and to the south by Tanzania. The southern part includes a substantial portion of Lake Victoria, shared with Kenya and Tanzania. Uganda is in the African Great Lakes region, lies within the Nile basin, and has a varied equatorial climate. , it has a population of 49.3 million, of whom 8.5 million live in the capital and largest city, Kampala. Uganda is named after the Buganda, Buganda kingdom, which encompasses a large portion of the south, including Kampala, and whose language Luganda is widely spoken; the official language is English. The region was populated by various ethnic groups, before Bantu and Nilotic groups arrived around 3,000 years ago. These groups established influential kingdoms such as the Empire of Kitara. The arrival of Arab trade ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wing-coverts
A covert feather or tectrix on a bird is one of a set of feathers, called coverts (or ''tectrices''), which cover other feathers. The coverts help to smooth airflow over the wings and tail. Ear coverts The ear coverts are small feathers behind the bird's eye which cover the ear opening (the ear of a bird has no external features). Tail coverts The uppertail and undertail coverts cover the base of the tail feathers above and below. Sometimes these coverts are more specialised. The "tail" of a peacock is made of elongated uppertail coverts. Wing coverts The upperwing coverts fall into two groups: those on the inner wing, which overlay the secondary flight feathers, known as the secondary coverts, and those on the outer wing, which overlay the primary flight feathers, the primary coverts. Within each group, the feathers form a number of rows. The feathers of the outermost, largest, row are termed greater (primary-/secondary-) coverts; those in the next row are the median (primar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subspecies
In Taxonomy (biology), biological classification, subspecies (: subspecies) is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (Morphology (biology), 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 as 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 name, infraspecific ranks, such as variety (botany), variety, may be named. In bacteriology and virology, under standard International Code of Nomenclature of Prokaryotes, bacterial nomenclature and virus clas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Von Der Decken's Hornbill
Von der Decken's hornbill (''Tockus deckeni'') is a hornbill found in East Africa, especially to the east of the East African Rift, from Ethiopia south to Tanzania. It is found mainly in thorn scrub and similar arid habitats. Jackson's hornbill is often treated as a subspecies of it. It was named after the German explorer Baron Karl Klaus von der Decken (1833–1865). Description This species is a small hornbill with blackish upperparts and mainly whitish underparts and head. It has a long tail and a long curved bill which lacks a :wikt:casque, casque. It is similar to the red-billed hornbill except for the bill colour and the lack of spotting on the wing coverts in both male and female. The species shows sexual dimorphism; the female has a black bill, whereas the male has a red bill with a cream tip and a black cutting edge. Breeding During incubation, the female lays two or three white egg (biology), eggs in a tree hole, which is blocked off with a cement made of mud, dropp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tockus
''Tockus'' is a genus of birds in the hornbill family, Bucerotidae, which are native to Africa. Description Hornbills in the genus ''Tockus'' are medium-sized African birds with triangular shaped curved bills. They can be found in tropical and sub-tropical African grasslands, forests and savannahs. They all have long tail feathers which are black on the exterior and white on the interior. Species The genus contains the following ten species: * Monteiro's hornbill (''Tockus monteiri'') * Red-billed hornbill group ** Northern red-billed hornbill (''Tockus erythrorhynchus'') ** Damara red-billed hornbill (''Tockus damarensis'') ** Southern red-billed hornbill (''Tockus rufirostris'') ** Tanzanian red-billed hornbill (''Tockus ruahae'') ** Western red-billed hornbill (''Tockus kempi'') * Yellow-billed hornbill group ** Southern yellow-billed hornbill (''Tockus leucomelas'') ** Eastern yellow-billed hornbill (''Tockus flavirostris'') * Von der Decken's hornbill Von der D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Birds Of East Africa
Birds are a group of warm-blooded vertebrates constituting the class Aves (), 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. Birds live worldwide and range in size from the bee hummingbird to the common ostrich. There are over 11,000 living species and they are split into 44 orders. More than half are passerine or "perching" birds. Birds have wings whose development varies according to species; the only known groups without wings are the extinct moa and elephant birds. Wings, which are modified forelimbs, gave birds the ability to fly, although further evolution has led to the loss of flight in some birds, including ratites, penguins, and diverse endemic island species. The digestive and respiratory systems of birds are also uniquely adapted for flight. Some bird species of aquatic environments, particularly seabirds and some waterbirds, have furt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
