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Hybridisation In Gulls
Hybridisation in gulls occurs quite frequently, although to varying degrees depending on the species involved. Hybrid large white-headed gulls * Herring gulls and lesser black-backed gulls interbreed to a limited degree where their ranges overlap, producing birds of intermediate appearance, which could be confused with yellow-legged gull. In North America, this combination is often known as "Appledore gull". * Western gulls and glaucous-winged gulls hybridise extensively in western North America between Washington and Oregon. This particular hybrid is sometimes known as the "Olympic gull", or "Puget Sound gull". The persistence and backcrossing of hybrids is believed to be due to hybrid superiority, where hybrids exhibit higher evolutionary fitness than parent species in the hybrid zone. * Great black-backed gulls and herring gulls have hybridized in eastern North America, particularly the Great Lakes. This hybrid is sometimes known as "Great Lakes gull". * Herring gulls and glauco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Olympic Gull On Nest, Western Oregon
Olympic or Olympics may refer to Sports Competitions * Olympic Games, international multi-sport event held since 1896 ** Summer Olympic Games ** Winter Olympic Games * Ancient Olympic Games, ancient multi-sport event held in Olympia, Greece between 776 BC and 393 AD * Wenlock Olympian Games, a forerunner of the modern Olympic Games, held since 1850 * Olympic (greyhounds), a competition held annually at Brighton & Hove Greyhound Stadium Clubs and teams * Adelaide Olympic FC, a soccer club from Adelaide, South Australia * Fribourg Olympic, a professional basketball club based in Fribourg, Switzerland * Sydney Olympic FC, an Australian soccer club * Olympic Club (Barbacena), a Brazilian football club based in Barbacena, Minas Gerais state * Olympic Mvolyé, a Cameroonian football club based in Mvolyé * Olympic Club (Egypt), a football and sports club based in Alexandria * Blackburn Olympic F.C., an English football club based in Blackburn, Lancashire * Rushall Olympic F. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black-headed Gull
The black-headed gull (''Chroicocephalus ridibundus'') is a small gull that breeds in much of the Palearctic including Europe and also in coastal eastern Canada. Most of the population is migratory and winters further south, but some birds reside in the milder westernmost areas of Europe. Small numbers also occur in northeastern North America, where it was formerly known as the common black-headed gull. As is the case with many gulls, it was previously placed in the genus ''Larus''. The genus name '' Chroicocephalus'' is from Ancient Greek ''khroizo'', "to colour", and ''kephale'', "head". The specific ''ridibundus'' is Latin for "laughing", from ''ridere'' "to laugh". The black-headed gull displays a variety of compelling behaviours and adaptations. Some of these include removing eggshells from one's nest after hatching, begging co-ordination between siblings, differences between sexes, conspecific brood parasitism, and extra-pair paternity. They are an overwintering species, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hybridisation In Shorebirds
Hybridisation in shorebirds has been proven on only a small number of occasions; however, many individual shorebirds have been recorded by birdwatchers worldwide that do not fit the characters of known species. Many of these have been suspected of being hybrids. In several cases, shorebird hybrids have been described as new species before their hybrid origin was discovered. Compared to other groups of birds (such as gulls), only a few species of shorebirds are known or suspected to hybridize, but nonetheless, these hybrids occur quite frequently in some cases. Hybrids in the Scolopaci (typical waders) "Cooper's" and "Cox's" sandpipers An apparently new sandpiper species ("Cooper's sandpiper ''Tringa''/''Calidris cooperi''") was described in 1858 based on a specimen collected in 1833 on Long Island, New York. A similar bird was collected in 1981 at Stockton, New South Wales, Australia. These are probably hybrids between the curlew sandpiper (''"Calidris" ferruginea'') and the sharp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bird Hybrid
A bird hybrid is a bird that has two different species as parents. The resulting bird can present with any combination of characteristics from the parent species, from totally identical to completely different. Usually, the bird hybrid shows intermediate characteristics between the two species. A "successful" hybrid is one demonstrated to produce fertile offspring. According to the most recent estimates, about 16% of all wild bird species have been known to hybridize with one another; this number increases to 22% when captive hybrids are taken into account. Several bird species hybridize with multiple other species. For example, the mallard (''Anas platyrhynchos'') is known to interbreed with at least 40 different species. The ecological and evolutionary consequences of multispecies hybridization remain to be determined. In the wild, some of the most frequently reported hybrids are waterfowl, gulls, hummingbirds, and birds-of-paradise. Mallards, whether of wild or domestic origin, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ring-billed Gull
The ring-billed gull (''Larus delawarensis'') is a medium-sized gull. The genus name is from Latin ''Larus'' which appears to have referred to a gull or other large seabird. The specific ''delawarensis'' refers to the Delaware River. Description Measurements: * Length: 16.9-21.3 in (43-54 cm) * Weight: 10.6-24.7 oz (300-700 g) * Wingspan: 41.3-46.1 in (105-117 cm) The head, neck and underparts are white; the relatively short bill is yellow with a dark ring; the back and wings are silver gray; and the legs are yellow. The eyes are yellow with red rims. This gull takes three years to reach its breeding plumage; its appearance changes with each fall moult. The average lifespan of an individual that reaches adulthood is 10.9 years The oldest ring-billed gull on record was observed in Cleveland in 2021, still alive at the age of 28 years. Distribution and habitat The ring-billed gulls' breeding habitat is near lakes, rivers, or the coast in Canada and the northern Unite ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Common Gull
The common gull or sea mew (''Larus canus'') is a medium-sized gull that breeds in the Palearctic, northern Europe. The closely related short-billed gull is sometimes included in this species, which may be known collectively as "mew gull". Many common gulls migrate further south in winter. There are differing accounts as to how the species acquired its vernacular name (see Etymology section below). The name "sea mew" is a calque of the Dutch name "zee meeuw". Description Adult common gulls are long, noticeably smaller than the herring gull and slightly smaller than the ring-billed gull. It is further distinguished from the ring-billed gull by its shorter, more tapered bill, which is a more greenish shade of yellow and is unmarked during the breeding season. The body is grey above and white below. The legs are yellow in breeding season, becoming duller in the winter. In winter, the head is streaked grey and the bill often has a poorly defined blackish band near the tip, whic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ring-billed Gull
The ring-billed gull (''Larus delawarensis'') is a medium-sized gull. The genus name is from Latin ''Larus'' which appears to have referred to a gull or other large seabird. The specific ''delawarensis'' refers to the Delaware River. Description Measurements: * Length: 16.9-21.3 in (43-54 cm) * Weight: 10.6-24.7 oz (300-700 g) * Wingspan: 41.3-46.1 in (105-117 cm) The head, neck and underparts are white; the relatively short bill is yellow with a dark ring; the back and wings are silver gray; and the legs are yellow. The eyes are yellow with red rims. This gull takes three years to reach its breeding plumage; its appearance changes with each fall moult. The average lifespan of an individual that reaches adulthood is 10.9 years The oldest ring-billed gull on record was observed in Cleveland in 2021, still alive at the age of 28 years. Distribution and habitat The ring-billed gulls' breeding habitat is near lakes, rivers, or the coast in Canada and the northern Unite ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laughing Gull
The laughing gull (''Leucophaeus atricilla'') is a medium-sized gull of North and South America. Named for its laugh-like call, it is an opportunistic omnivore and scavenger. It breeds in large colonies mostly along the Atlantic coast of North America, the Caribbean, and northern South America. The two subspecies are: ''L. a. megalopterus'' – which can be seen from southeast Canada down to Central America, and ''L. a. atricilla'' which appears from the West Indies to the Venezuelan islands. The laughing gull was long placed in the genus ''Larus'' until its present placement in ''Leucophaeus'', which follows the American Ornithologists' Union. Name The genus name ''Leucophaeus'' is from Ancient Greek λευκός : ''leukós'', "white", and φαιός : ''phaios'', "dusky". The specific ''atricilla'' is from Latin ''atra'', "black", " unlucky" or "malevolent" and ''cilla'', "tail". According to the ''Helm Dictionary of Scientific Bird Names'', Linnaeus may have intended to wri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Birding Scotland
''Birding Scotland'' is a quarterly Scottish birding magazine. The editors are H. I. Scott and Stuart Rivers. The original advertising slogan was "Made in Scotland for birders", a take on the iconic Irn-Bru campaign "Made in Scotland from girders". See also *List of journals and magazines relating to birding and ornithology The following is a list of journals and magazines relating to birding and ornithology. The continent and country columns give the location where the journal or magazine is published and may not correspond with its scope or content. See also ... External links * Magazines published in Scotland Quarterly magazines published in the United Kingdom Journals and magazines relating to birding and ornithology Magazines established in 1998 Wildlife magazines Ornithology in Scotland 1998 establishments in Scotland Mass media in Aberdeen {{hobby-mag-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lothian
Lothian (; sco, Lowden, Loudan, -en, -o(u)n; gd, Lodainn ) is a region of the Scottish Lowlands, lying between the southern shore of the Firth of Forth and the Lammermuir Hills and the Moorfoot Hills. The principal settlement is the Scottish capital, Edinburgh, while other significant towns include Livingston, Linlithgow, Bathgate, Queensferry, Dalkeith, Bonnyrigg, Penicuik, Musselburgh, Prestonpans, North Berwick, Dunbar, Whitburn and Haddington. Historically, the term Lothian referred to a province encompassing most of what is now southeastern Scotland. In the 7th century it came under the control of the Anglian kingdom of Bernicia, the northern part of the later kingdom of Northumbria, but the Angles' grip on Lothian was quickly weakened following the Battle of Nechtansmere in which they were defeated by the Picts. Lothian was annexed to the Kingdom of Scotland around the 10th century. Subsequent Scottish history saw the region subdivided into three counties— ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Belhaven Bay
Belhaven may refer to: Places United Kingdom *Lord Belhaven and Stenton *Belhaven, Scotland **Belhaven Hill School, commonly referred to as "Belhaven" United States *Belhaven, North Carolina *Alexandria, Virginia, formerly named Belhaven. *Belhaven University, a private, Christian university located in Jackson, Mississippi ** Belhaven Neighborhood, a historic neighborhood in Jackson, Mississippi, named after the university Businesses *Belhaven Brewery Belhaven Brewery is a brewery based in Belhaven, Scotland. The brewery dates from 1719, at least; by 2005 it had become the largest and oldest surviving independent brewery in Scotland. In November 2005, the Suffolk based brewery Greene Ki ..., a brewery based in Belhaven, Scotland {{disambig, geo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Birding World
''Birding World'' was a monthly birding magazine published in the United Kingdom. It was the magazine of the Bird Information Service, based at Cley next the Sea, Norfolk. With the publication of issue No. 26/12 in January 2014, ''Birding World'' magazine ceased publication. History and profile Originally published in 1987 as ''Twitching'' volume 1, the magazine underwent a name-change to this name, in 1988 (also resetting its volume count back to 1). The editor was Steve Gantlett, and the assistant editor Richard Millington. It was aimed at birders with an interest in the occurrence and identification of rare birds in the United Kingdom and the Western Palearctic. It also covered birding-related material from around the globe. The range of material published included: * papers on bird identification, often including proposed new identification characters for difficult groups of taxa * news articles on rare birds in Britain and elsewhere in the Western Palearctic Significant a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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