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Toucan-barbet
The toucan-barbets are the small bird genus ''Semnornis''. This was often included in the paraphyletic barbets but recently usually considered a distinct family Semnornithidae; alternatively, all barbets might be moved to the toucan family Ramphastidae as a subfamily, Semnornithinae. It contains only two species, the toucan barbet (''S. ramphastinus'') and the prong-billed barbet (''S. frantzii''). Description The ''Semnornis'' barbets are fairly large barbets, measuring between . The toucan barbet is larger than the prong-billed barbet and considerably heavier. They possess large, swollen bills and lack strong sexual dimorphism in their plumage. The plumage of the prong-billed barbet is orange-brown, and that of the toucan barbet is more distinctively patterned with black, red, grey and gold. Distribution and habitat The ''Semnornis'' toucan-barbets are found in the Neotropics. The prong-billed barbet is restricted to the humid highland forests of Costa Rica and Panama. The t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Semnornis
The toucan-barbets are the small bird genus ''Semnornis''. This was often included in the paraphyletic barbets but recently usually considered a distinct family Semnornithidae; alternatively, all barbets might be moved to the toucan family Ramphastidae as a subfamily, Semnornithinae. It contains only two species, the toucan barbet (''S. ramphastinus'') and the prong-billed barbet (''S. frantzii''). Description The ''Semnornis'' barbets are fairly large barbets, measuring between . The toucan barbet is larger than the prong-billed barbet and considerably heavier. They possess large, swollen bills and lack strong sexual dimorphism in their plumage. The plumage of the prong-billed barbet is orange-brown, and that of the toucan barbet is more distinctively patterned with black, red, grey and gold. Distribution and habitat The ''Semnornis'' toucan-barbets are found in the Neotropics. The prong-billed barbet is restricted to the humid highland forests of Costa Rica and Panama. The t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toucan Barbet
The toucan barbet (''Semnornis ramphastinus'') is a barbet native to western Ecuador and Colombia. Along with the prong-billed barbet, it forms the family Semnornithidae, and is closely related to the toucans. It is a medium-sized barbet with a robust yellow bill. It has striking plumage, having a black head with grey throat and nape, red breast and upper belly, yellow lower belly and grey wings and tail. The toucan barbet is native to humid montane forests, where it occupies all levels of the canopy and is found in both primary and secondary forests, as well as forest edges. It is social, living in small family groups which work together to defend their territories and raise the chicks communally. It feeds on fruit and a range of animal prey, with insects being an important part of the diet of chicks. It sometimes joins mixed-species feeding flocks. Chicks are raised in cavities dug into large, usually dead trees. Young toucan barbets are preyed upon by plate-billed mountain ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Costa Rica
Costa Rica (, ; ; literally "Rich Coast"), officially the Republic of Costa Rica ( es, República de Costa Rica), is a country in the Central American region of North America, bordered by Nicaragua to the north, the Caribbean Sea to the northeast, Panama to the southeast, the Pacific Ocean to the southwest, and Maritime boundary, maritime border with Ecuador to the south of Cocos Island. It has a population of around five million in a land area of . An estimated 333,980 people live in the capital and largest city, San José, Costa Rica, San José, with around two million people in the surrounding metropolitan area. The sovereign state is a Unitary state, unitary Presidential system, presidential Constitution of Costa Rica, constitutional republic. It has a long-standing and stable democracy and a highly educated workforce. The country spends roughly 6.9% of its budget (2016) on education, compared to a global average of 4.4%. Its economy, once heavily dependent on agricultu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toucan Barbet (23405007136)
The toucan barbet (''Semnornis ramphastinus'') is a barbet native to western Ecuador and Colombia. Along with the prong-billed barbet, it forms the family Semnornithidae, and is closely related to the toucans. It is a medium-sized barbet with a robust yellow bill. It has striking plumage, having a black head with grey throat and nape, red breast and upper belly, yellow lower belly and grey wings and tail. The toucan barbet is native to humid montane forests, where it occupies all levels of the canopy and is found in both primary and secondary forests, as well as forest edges. It is social, living in small family groups which work together to defend their territories and raise the chicks communally. It feeds on fruit and a range of animal prey, with insects being an important part of the diet of chicks. It sometimes joins mixed-species feeding flocks. Chicks are raised in cavities dug into large, usually dead trees. Young toucan barbets are preyed upon by plate-billed mountain ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prong-billed Barbet
The prong-billed barbet (''Semnornis frantzii'') is a distinctive, relatively large-billed bird native to humid highland forest of Costa Rica and western Panama. Taxonomy and systematics The prong-billed barbet was traditionally placed in family Capitonidae ''sensu lato'' with both Neotropic and Old World barbets. However, morphological, hybridization, and DNA studies have confirmed that this arrangement is paraphyletic; New World barbets are more closely related to toucans than they are to Old World barbets. Therefore New World (Capitonidae ''sensu stricto''), African (Lybiidae), and Asian (Megalaimidae) barbets were each accorded their own families. The prong-billed barbet and the toucan barbet (''Semnornis ramphastinus'') were placed in the new family Semnornithidae. The prong-billed barbet is monotypic. Its specific epithet commemorates the German naturalist Alexander von Frantzius. Description The prong-billed barbet is long and weighs about . Its bill is silvery gray ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prong-billed Barbet
The prong-billed barbet (''Semnornis frantzii'') is a distinctive, relatively large-billed bird native to humid highland forest of Costa Rica and western Panama. Taxonomy and systematics The prong-billed barbet was traditionally placed in family Capitonidae ''sensu lato'' with both Neotropic and Old World barbets. However, morphological, hybridization, and DNA studies have confirmed that this arrangement is paraphyletic; New World barbets are more closely related to toucans than they are to Old World barbets. Therefore New World (Capitonidae ''sensu stricto''), African (Lybiidae), and Asian (Megalaimidae) barbets were each accorded their own families. The prong-billed barbet and the toucan barbet (''Semnornis ramphastinus'') were placed in the new family Semnornithidae. The prong-billed barbet is monotypic. Its specific epithet commemorates the German naturalist Alexander von Frantzius. Description The prong-billed barbet is long and weighs about . Its bill is silvery gray ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Helpers At The Nest
Helpers at the nest is a term used in behavioural ecology and evolutionary biology to describe a social structure in which juveniles and sexually mature adolescents of either one or both sexes remain in association with their parents and help them raise subsequent broods or litters, instead of dispersing and beginning to reproduce themselves. This phenomenon was first studied in birds where it occurs most frequently, but it is also known in animals from many different groups including mammals and insects. It is a simple form of co-operative breeding. The effects of helpers usually amount to a net benefit, however, benefits are not uniformly distributed by all helpers nor across all species that exhibit this behaviour. There are multiple proposed explanations for the behaviour, but its variability and broad taxonomic occurrences result in simultaneously plausible theories.Dickinson, J. L.; Hatchwell, B. J. (2004) "Fitness consequences of helping" in ''Ecology and evolution of coop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Territory (animal)
In ethology, territory is the sociographical area that an animal consistently defends against conspecific competition (or, occasionally, against animals of other species) using agonistic behaviors or (less commonly) real physical aggression. Animals that actively defend territories in this way are referred to as being territorial or displaying territorialism. Territoriality is only shown by a minority of species. More commonly, an individual or a group of animals occupies an area that it habitually uses but does not necessarily defend; this is called its home range. The home ranges of different groups of animals often overlap, and in these overlap areas the groups tend to avoid each other rather than seeking to confront and expel each other. Within the home range there may be a ''core area'' that no other individual group uses, but, again, this is as a result of avoidance. Function The ultimate function of animals inhabiting and defending a territory is to increase the indi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monogamy
Monogamy ( ) is a form of dyadic relationship in which an individual has only one partner during their lifetime. Alternately, only one partner at any one time (serial monogamy) — as compared to the various forms of non-monogamy (e.g., polygamy or polyamory). The term is also applied to the social behavior of some animals, referring to the state of having only one mate at any one time. A monogamous relationship can be sexual or emotional, but it's usually both. Many modern relationships are monogamous. Terminology The word ''monogamy'' derives from the Greek μονός, ''monos'' ("alone"), and γάμος, ''gamos'' ("marriage").Cf. "Monogamy" in ''Britannica World Language Dictionary'', R.C. Preble (ed.), Oxford-London 1962, p. 1275:''1. The practice or principle of marrying only once. opp. to digamy now ''rare'' 2. The condition, rule or custom of being married to only one person at a time (opp. to polygamy or bigamy) 1708. 3. Zool. The habit of living in pairs, or havin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Woodpecker
Woodpeckers are part of the bird family Picidae, which also includes the piculets, wrynecks, and sapsuckers. Members of this family are found worldwide, except for Australia, New Guinea, New Zealand, Madagascar, and the extreme polar regions. Most species live in forests or woodland habitats, although a few species are known that live in treeless areas, such as rocky hillsides and deserts, and the Gila woodpecker specialises in exploiting cacti. Members of this family are chiefly known for their characteristic behaviour. They mostly forage for insect prey on the trunks and branches of trees, and often communicate by drumming with their beaks, producing a reverberatory sound that can be heard at some distance. Some species vary their diet with fruits, birds' eggs, small animals, tree sap, human scraps, and carrion. They usually nest and roost in holes that they excavate in tree trunks, and their abandoned holes are of importance to other cavity-nesting birds. They sometimes com ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Handbook Of The Birds Of The World
The ''Handbook of the Birds of the World'' (HBW) is a multi-volume series produced by the Spanish publishing house Lynx Edicions in partnership with BirdLife International. It is the first handbook to cover every known living species of bird. The series was edited by Josep del Hoyo, Andrew Elliott, Jordi Sargatal and David A. Christie. All 16 volumes have been published. For the first time an animal class will have all the species illustrated and treated in detail in a single work. This has not been done before for any other group in the animal kingdom. Material in each volume is grouped first by family, with an introductory article on each family; this is followed by individual species accounts (taxonomy, subspecies and distribution, descriptive notes, habitat, food and feeding, breeding, movements, status and conservation, bibliography). In addition, all volumes except the first and second contain an essay on a particular ornithological theme. More than 200 renowned speci ... [...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, as wel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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