The nests of sunbirds are generally purse-shaped, enclosed, suspended from thin branches with generous use of spiderweb. [3] In addition to this the tails of many species are longer in the males, and overall the males are larger. Sunbird 1.0 Beta 1 Deutsch: Sunbird war eine ansprechende Kalender-Applikation vom Firefox-Hersteller Mozilla [3], In metabolic behaviour similar to that of Andes hummingbirds,[5] species of sunbirds that live at high altitudes or latitudes will enter torpor while roosting at night, lowering their body temperature and entering a state of low activity and responsiveness. She has taught science courses at the high school, college, and graduate levels. Common Names: sunbird, spiderhunter; Basic Animal Group: Bird; Size: Less than 4 inches; Weight: 0.2-1.6 ounces; Lifespan: 16-22 years; Diet: Omnivore; Habitat: Southeast Asia, Africa, northern Australia; Population: Stable or decreasing; Conservation Status: Least Concern to Endangered A sunbird dips its curved bill into a flower or else pierces its base and then sips nectar using a long, tubular tongue.
There are 145 species in 16 genera. They tend not to favor coasts or islands. [7] In the spiderhunters both sexes help to incubate the eggs. Some species have readily adapted to human modified landscapes such as plantations, gardens and agricultural land. A few species engage in lekking, where a group of males gather to put on a courtship display to attract females. The female builds the nest and incubates the eggs alone, although the male assists in rearing the nestlings. Some species have adapted to live near human habitation in gardens and agricultural land. They are typically larger than the other sunbirds, with drab brown plumage that is the same for both sexes, and long, down-curved beaks. Their flight is fast and direct, thanks to their short wings. Most species are monogamous and territorial. Sunbirds are considered attractive birds and readily enter gardens where flowering plants are planted to attract them. This article is about the family of birds. However, most sunbirds have curved bills and perch to feed rather than hover like hummingbirds. Seven species are threatened with extinction and the elegant sunbird (Aethopyga duyvenbodei) is endangered. Film- und Serien-Streams: Amazon, Disney, Joyn, Netflix & Sky im Vergleich, Anonym surfen mit VPN: Die besten VPN-Anbieter im Vergleich, Windows NT, Linux, Windows 98, Windows 2000, Windows ME, OS X, keine näheren Angaben, Windows XP. The family contains 146 species divided into 16 genera:[16] For more detail, see list of sunbird species. In Africa they are found mostly in sub-Saharan Africa and Madagascar but are also distributed in Egypt. [3], Sunbirds are a tropical Old World family, with representatives in Africa, Asia and Australasia.
Zeit sparen mit Drei-Phasen-Check. The spiderhunters are distinct from other sunbirds in that they are larger and both sexes have the same dull brown plumage. [4] The spiderhunters, of the genus Arachnothera, are distinct in appearance from the other members of the family.
However, spiderhunter nests are woven cups attached beneath large leaves. Species of sunbird in the equatorial areas breed throughout the year. The family ranges in size from the 5-gram black-bellied sunbird to the spectacled spiderhunter, at about 45 grams. In some instances different populations of the same species can display variation in different molting regimes. Their songs consists of rattles and metallic-sounding notes. Most species are sedentary or short-distance seasonal migrants.
As nectar is a primary food source for sunbirds, they are important pollinators in African ecosystems. Up to four eggs are laid. Threats to the species include habitat loss and degradation from deforestation and human encroachment. Except for the spiderhunters, sunbirds are strongly sexually dimorphic. The smallest sunbird is the black-bellied sunbird, which weighs about 5 grams or 0.2 ounces. Sunbirds are small, slender birds measuring less than 4 inches in length. Some, like the little spiderhunter, are small woven cups attached to the underside of large leaves; that of the yellow-eared spiderhunter is similarly attached but is a long tube. In the dry months of June−August, male copper sunbirds and variable sunbirds lose much of their metallic sheen. [14][15], Overall the family has fared better than many others, with only seven species considered to be threatened with extinction. A few species occasionally gather in larger groups, and sunbird will join with other birds to mob potential predators, although sunbirds will also aggressively target other species, even if they are not predators, when defending their territories.
Species diversity is highest in equatorial regions. Males often have brilliant iridescent plumage, while females tend to be duller or different colors than males. The greatest variety of species is found in Africa, where the group probably arose. Many species also have especially long tail feathers. Kompakter Terminkalender, der auch ohne Installation auf USB-Sticks oder im Netzwerk oder ähnlichem einsetzbar ist; mit Import- und Export-Funktionen für …. Sunbirds that breed outside of the equatorial regions are mostly seasonal breeders, with the majority of them breeding in the wet season. Generally, males are larger than females and have longer tails. The IUCN classifies most sunbird species as "least concern." They are small, slender passerines from the Old World, usually with downward-curved bills. For other uses, see, "Hyper-specialization for long-billed bird pollination in a guild of South African plants: the Malachite Sunbird pollination syndrome", "The ecological and evolutionary interface of hummingbird flight physiology", 10.1642/0004-8038(2002)119[0251:NHATIT]2.0.CO;2, "Pollination ecology of Aloe divaricata, Berger (Liliaceae): an endemic plant species of south-west Madagascar", "The pollination niche and its role in the diversification and maintenance of the southern African flora", "Dippers, leafbirds, flowerpeckers, sunbirds", https://en.wikipedia.org/w/index.php?title=Sunbird&oldid=982217538, Creative Commons Attribution-ShareAlike License, This page was last edited on 6 October 2020, at 20:37. They eat from orange and red tubular flowers and are important pollinators for these species. OUR DATA: We use the most recent data from these primary sources: AnAge, UMICH, Max Planck, PanTHERIA, Arkive, UKC, AKC. [3], The sunbirds and spiderhunters occupy a wide range of habitats, with a majority of species being found in primary rainforest, but other habitats used by the family including disturbed secondary forest, open woodland, open scrub and savannah, coastal scrub and alpine forest. Download-Tipps, Sonderangebote und interessantes Software-Know-How für den Alltag – unser Newsletter hält euch auf dem Laufenden! Sunbird are active diurnal birds that generally occur in pairs or occasionally in small family groups. All birds in the family are sunbirds, but those in the genus Arachnothera are called spiderhunters. Sunbirds and spiderhunters make up the family Nectariniidae of passerine birds. Some species migrate seasonally, but only a short distance. Birds that live near the equator may breed any time of year. [1] Fruit is also part of the diet of some species. Calefly ist eine Terminplanungs-Software für große Zeiträume.
Most species are fairly resistant to changes in habitat, and while attractive the family is not sought after by the cagebird trade, as they have what is considered an unpleasant song and are tricky to keep alive. Like unrelated hummingbirds, they feed primarily on nectar. Online werben: Was funktioniert am besten?
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