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Sitta (princess)
The nuthatches () constitute a genus, ''Sitta'', of small passerine birds belonging to the family Sittidae. Characterised by large heads, short tails, and powerful bills and feet, nuthatches advertise their territory using loud, simple songs. Most species exhibit grey or bluish upperparts and a black eye stripe. Most nuthatches breed in the temperate or montane woodlands of the Northern Hemisphere, although two species have adapted to rocky habitats in the warmer and drier regions of Eurasia. However, the greatest diversity is in Southern Asia, and similarities between the species have made it difficult to identify distinct species. All members of this genus nest in holes or crevices. Most species are non-migratory and live in their habitat year-round, although the North American red-breasted nuthatch migrates to warmer regions during the winter. A few nuthatch species have restricted ranges and face threats from deforestation. Nuthatches are omnivorous, eating mostly insects ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eurasian Nuthatch
The Eurasian nuthatch or wood nuthatch (''Sitta europaea'') is a small passerine bird found throughout the Palearctic and in Europe. Like other nuthatches, it is a short-tailed bird with a long bill, blue-gray upperparts and a black eye-stripe. It is a vocal bird with a repeated loud ''dwip'' call. There are more than 20 subspecies in three main groups; birds in the west of the range have orange-buff underparts and a white throat, those in Russia have whitish underparts, and those in the east have a similar appearance to European birds, but lack the white throat. Its preferred habitat is mature deciduous or mixed woodland with large, old trees, preferably oak. Pairs hold permanent territories, and nest in tree holes, usually old woodpecker nests, but sometimes natural cavities. If the entrance to the hole is too large, the female plasters it with mud to reduce its size, and often coats the inside of the cavity too. The 6–9 red-speckled white eggs are laid on a deep base of pin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Omnivore
An omnivore () is an animal that has the ability to eat and survive on both plant and animal matter. Obtaining energy and nutrients from plant and animal matter, omnivores digest carbohydrates, protein, fat, and fiber, and metabolize the nutrients and energy of the sources absorbed. Often, they have the ability to incorporate food sources such as algae, fungi, and bacteria into their diet. Omnivores come from diverse backgrounds that often independently evolved sophisticated consumption capabilities. For instance, dogs evolved from primarily carnivorous organisms ( Carnivora) while pigs evolved from primarily herbivorous organisms (Artiodactyla). Despite this, physical characteristics such as tooth morphology may be reliable indicators of diet in mammals, with such morphological adaptation having been observed in bears. The variety of different animals that are classified as omnivores can be placed into further sub-categories depending on their feeding behaviors. Frugivor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Treecreeper
The treecreepers are a family, Certhiidae, of small passerine birds, widespread in wooded regions of the Northern Hemisphere and sub-Saharan Africa. The family contains eleven species in two genera, ''Certhia'' and ''Salpornis''. Their plumage is dull-coloured, and as their name implies, they climb over the surface of trees in search of food. Taxonomy and systematics The family consists of two subfamilies, each with one genus. Their distinctive anatomical and behavioural characteristics are discussed in their respective articles. *Subfamily Certhiinae, genus ''Certhia'', is the typical treecreepers, with eight species found in Europe and Asia, and one, the brown creeper, in North America. *Subfamily Salpornithinae, genus ''Salpornis'', contains only the Indian spotted creeper and African spotted creeper. Some taxonomists place the nuthatches and treecreepers in a larger grouping with the wrens and gnatcatchers. This superfamily, the Certhioidea, was based on phylogenetic studie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Morphology (biology)
Morphology is a branch of biology dealing with the study of the form and structure of organisms and their specific structural features. This includes aspects of the outward appearance (shape, structure, colour, pattern, size), i.e. external morphology (or eidonomy), as well as the form and structure of the internal parts like bones and organs, i.e. internal morphology (or anatomy). This is in contrast to physiology, which deals primarily with function. Morphology is a branch of life science dealing with the study of gross structure of an organism or taxon and its component parts. History The etymology of the word "morphology" is from the Ancient Greek (), meaning "form", and (), meaning "word, study, research". While the concept of form in biology, opposed to function, dates back to Aristotle (see Aristotle's biology), the field of morphology was developed by Johann Wolfgang von Goethe (1790) and independently by the German anatomist and physiologist Karl Friedrich Burdach ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wallcreeper
The wallcreeper (''Tichodroma muraria'') is a small passerine bird found throughout the high mountains of the Palearctic from southern Europe to central China. It is the only extant member of both the genus ''Tichodroma'' and the family Tichodromidae. Taxonomy and systematics There is some disagreement among ornithologists as to where the wallcreeper belongs in the taxonomic order. Initially, Linnaeus placed it in the family Certhiidae, along with the treecreepers. The wallcreeper is placed in a monotypic family Tichodromadidae by, amongst others, Clements 2007, while other authorities such as Dickinson 2003 put it in the monotypic Tichodromadinae, a subfamily of the nuthatch family Sittidae. In either case, it is very closely related to the nuthatches. A 2016 phylogenetic study of members in the superfamily Certhioidea suggests it is a sister of the Sittidae. At least one other species of wallcreeper is known from the fossil record, ''Tichodroma capeki'' (Late Miocene of Polgard ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Certhiidae
The treecreepers are a family, Certhiidae, of small passerine birds, widespread in wooded regions of the Northern Hemisphere and sub-Saharan Africa. The family contains eleven species in two genera, ''Certhia'' and ''Salpornis''. Their plumage is dull-coloured, and as their name implies, they climb over the surface of trees in search of food. Taxonomy and systematics The family consists of two subfamilies, each with one genus. Their distinctive anatomical and behavioural characteristics are discussed in their respective articles. *Subfamily Certhiinae, genus ''Certhia'', is the typical treecreepers, with eight species found in Europe and Asia, and one, the brown creeper, in North America. *Subfamily Salpornithinae, genus ''Salpornis'', contains only the Indian spotted creeper and African spotted creeper. Some taxonomists place the nuthatches and treecreepers in a larger grouping with the wrens and gnatcatchers. This superfamily, the Certhioidea, was based on phylogenetic studie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tichodromidae
The wallcreeper (''Tichodroma muraria'') is a small passerine bird found throughout the high mountains of the Palearctic from southern Europe to central China. It is the only extant member of both the genus ''Tichodroma'' and the family Tichodromidae. Taxonomy and systematics There is some disagreement among ornithologists as to where the wallcreeper belongs in the taxonomic order. Initially, Linnaeus placed it in the family Certhiidae, along with the treecreepers. The wallcreeper is placed in a monotypic family Tichodromadidae by, amongst others, Clements 2007, while other authorities such as Dickinson 2003 put it in the monotypic Tichodromadinae, a subfamily of the nuthatch family Sittidae. In either case, it is very closely related to the nuthatches. A 2016 phylogenetic study of members in the superfamily Certhioidea suggests it is a sister of the Sittidae. At least one other species of wallcreeper is known from the fossil record, ''Tichodroma capeki'' (Late Miocene of Polgard ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Certhioidea
Certhioidea is a superfamily belonging to the infraorder Passerida containing wrens and their allies. It was proposed in 2004 by Cracraft and colleagues to house a clade of four families that were removed from the superfamily Sylvioidea. Classification In 2019 Carl Oliveros and colleagues published a large molecular phylogenetic study of the passerines that included species from each of the five families that make up the superfamily Certhioidea. The spotted creepers (genus ''Salpornis'') are here included in the family Certhiidae. Edward Dickinson and Leslie Christidis in the fourth edition of the ''Howard and Moore Complete Checklist of the Birds of the World The ''Howard and Moore Complete Checklist of the Birds of the World'' is a book by Richard Howard and Alick Moore which presents a list of the bird species of the world. It was the first single-volume world bird list to include subspecies names, ...'' placed them in their own family Salpornithidae. References ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mixed-species Feeding Flock
A mixed-species feeding flock, also termed a mixed-species foraging flock, mixed hunting party or informally bird wave, is a flock of usually insectivorous birds of different species that join each other and move together while foraging. These are different from feeding aggregations, which are congregations of several species of bird at areas of high food availability. While it is currently unknown how mixed-species foraging flocks originate, researchers have proposed a few mechanisms for their initiation. Many believe that nuclear species play a vital role in mixed-species flock initiation. Additionally, the forest structure is hypothesized to play a vital role in these flocks' formation. In Sri Lanka, for example, vocal mimicry by the greater racket-tailed drongo might have a key role in the initiation of mixed-species foraging flocks, while in parts of the American tropics packs of foraging golden-crowned warblers might play the same role. Composition Mixed-species foraging ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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