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Treecreepers
The treecreepers are a family (biology), family, Certhiidae, of small passerine Aves, birds, widespread in wooded regions of the Northern Hemisphere. The family contains nine species in one genus, ''Certhia''. Their plumage is dull-coloured. As their name implies, they climb over the vertical surfaces of trees in search of food. Taxonomy and systematics Some taxonomists place the nuthatches and treecreepers in a larger grouping with the wrens and gnatcatchers. This taxonomic rank, superfamily, the Certhioidea, was based on phylogenetics, phylogenetic studies using mitochondrial and cell nucleus, nuclear DNA, and was created to cover a clade of four families removed from a larger grouping of passerine birds, the Old World warbler, Sylvioidea.Cracraft, J.; Barker, F. Keith; Braun, M. J.; Harshman, J.; Dyke, G.; Feinstein, J.; Stanley, S.; Cibois, A.; Schikler, P.; Beresford, P.; García-Moreno, J.; Sorenson, M. D.; Yuri, T.; Mindell. D. P. (2004) "Phylogenetic relationships among m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australian Treecreeper
There are seven species of Australasian treecreeper in the passerine bird family (biology), family Climacteridae. They are medium-small, mostly brown birds with patterning on their underparts, and all are endemic to Australia-New Guinea. They resemble, but are not closely related to, the Holarctic treecreepers. The family is one of several families identified by DNA–DNA hybridisation studies to be part of the Australo-Papuan songbird radiation. There is some molecular support for suggesting that their closest relatives are the large lyrebirds. As their name implies, treecreepers forage for insects and other small creatures living on and under the bark of trees, mostly eucalypts, though several species also hunt on the ground, through leaf-litter, and on fallen timber. Unlike the Holarctic treecreepers they do not use their tail for support when climbing tree trunks, only their feet. Australasian treecreepers bird nest, nest in holes in trees. The species in the family hold br ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hodgson's Treecreeper
Hodgson's treecreeper (''Certhia hodgsoni'') is a small passerine bird from the southern rim of the Himalayas. Its specific distinctness from the common treecreeper (''C. familiaris'') was recently validated. Description This is a small bird, long, of fairly drab appearance. It is brownish with lighter and darker streaks above, and off-white below and on the supercilium. It is browner above than the common treecreeper (''C. familiaris''), with a contrasting rufous rump. It has a long curved bill and long stiff tail feathers. The song starts with two of the ''shree'' calls characteristic for this species and its close relatives. Then follow one or a few warbling calls, and finally (usually) two up- and downslurring notes. Each sound is about 0.3 seconds long, and the whole song takes about 2 to 2.5 seconds. It drops in pitch at a constant rate from around 7.5 kHz initially to 6 kHz, slurring down to 4 kHz once or twice in the end.Tietze ''et al.'' (2006) Systematics ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Certhia
'' Certhia '' is the genus of birds containing the typical treecreepers, which makes up the family Certhiidae. The typical treecreepers occur in many wooded parts of the North Temperate Zone. They do not normally migrate other than for local movements, such as altitudinal migrations in the Himalayan species. The treecreepers are small woodland birds, very similar in appearance (so they can present serious identification problems where two species occur together). They are brown with streaks above and white below. They have thin pointed down-curved bills, which they use to extricate insects from bark. They have stiff, pointed tail feathers, like woodpeckers and woodcreepers, which they use to support themselves on vertical trees. All the tail feathers but the two central ones are molted in quick succession; the two central ones are not molted till the others grow back, so the bird can always prop itself with its tail. They build cup nests on loose twig platforms wedged behind ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Short-toed Treecreeper
The short-toed treecreeper (''Certhia brachydactyla'') is a small passerine bird found in woodlands through much of the warmer regions of Europe and into north Africa. It has a generally more southerly distribution than the other European Certhia, treecreeper species, the common treecreeper, with which it is easily confused where they both occur. The short-toed treecreeper tends to prefer deciduous trees and lower altitudes than its relative in these overlap areas. Although mainly sedentary, vagrants have occurred outside the breeding range. The short-toed treecreeper is one of a group of four very similar Holarctic treecreepers, including the closely related North American brown creepers, and has five subspecies differing in appearance and song. Like other treecreepers, the short-toed is inconspicuously plumaged brown above and whitish below, and has a curved bill and stiff tail feathers. It is a resident in woodlands throughout its range, and nests in tree crevices or behind ba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eurasian Treecreeper
The Eurasian treecreeper or common treecreeper (''Certhia familiaris'') is a small passerine bird also known in the British Isles, where it is the only living member of its genus, simply as treecreeper. It is similar to other Certhia, treecreepers, and has a curved bill, patterned brown upperparts, whitish underparts, and long stiff tail feathers which help it creep up tree trunks. It can be most easily distinguished from the similar short-toed treecreeper, which shares much of its European range, by its different song. The Eurasian treecreeper has nine or more subspecies which breed in different parts of its range in the Palearctic. This species is found in woodlands of all kinds, but where it overlaps with the short-toed treecreeper in western Europe it is more likely to be found in coniferous forests or at higher altitudes. It nests in tree crevices or behind bark flakes, and favours introduced Sequoiadendron giganteum, giant sequoia as nest sites where they are available. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
