Treecreeper

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Treecreepers
Cyprus treecreeper (Certhia brachydactyla dorotheae).jpg
Cyprus subspecies of short-toed treecreeper
Certhia brachydactyla dorotheae
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Superfamily: Certhioidea
Family: Certhiidae
Leach, 1820
Genera

Certhia
Salpornis

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.

Contents

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.

Some taxonomists place the nuthatches and treecreepers in a larger grouping with the wrens and gnatcatchers. This superfamily, the Certhioidea, was based on phylogenetic studies using mitochondrial and nuclear DNA, and was created to cover a clade of four families removed from a larger grouping of passerine birds, the Sylvioidea. [1] The fossil record for this group appears to be restricted to a foot bone of an early Miocene bird from Bavaria which has been identified as an extinct representative of the climbing Certhioidea, a clade comprising the treecreepers, wallcreeper and nuthatches. It has been described as Certhiops rummeli. [2]

Certhioidea

Tichodromidae: wallcreeper

Sittidae: nuthatches

Certhiidae: treecreepers

Polioptilidae: gnatcatchers

Troglodytidae: wrens

Relationships among families in the superfamily Certhioidea. [3]

The genus name is derived from Ancient Greek kerthios, a small tree-dwelling bird described by Aristotle and others. [4]

There are two other small bird families with treecreeper or creeper in their name, which are not closely related:

The wallcreeper was originally described in the family Certhiidae but is now considered as more closely related to the nuthatches. The woodcreepers (subfamily Dendrocolaptinae) also have a similar name.

Species in taxonomic order

An extinct treecreeper, Certhia rummeli , was described from a fossilized right tarsometatarsus found in karstic fissure fillings in Petersbuch, Bavaria by German paleornithologist Albrecht Manegold. This specimen implies the branching of Certhioidea occurred 20 MYA, and represents the oldest fossil passerine assignable to an extant subordinated clade of oscines in the Northern Hemisphere. [5]

Description

Treecreepers measure from 12 to 18 centimetres in length. Their bills are gently down-curved and rather long, used for probing bark for insects and spiders. They often climb up tree trunks in a helical path, hopping with their feet together; their toes are long and tipped with strongly curved claws for gripping. The longer tails of the Certhia treecreepers are stiffened to use as a prop while climbing, but those of the spotted creeper are shorter and not stiffened. Their songs and calls are thin and high-pitched. [6]

Distribution and habitat

Most species of treecreeper occur in the Palearctic and Indomalayan realms, from Western Europe to Japan and India. One species occurs in North America from Alaska to Nicaragua and another has a discontinuous distribution in sub-Saharan Africa and India. All species of treecreeper are found in forest and woodland habitats. The more northerly species are partly migratory, and those found in warmer climates are thought to be resident, although information is lacking for many species. [7]

Behaviour and ecology

Treecreepers are generally unobtrusive and are often indifferent to humans. They occur as singles or in pairs, sometimes in small family groups after fledging. Communal roosting has been observed in three species (and may occur in more), with as many as 20 birds sharing a roosting hole in order to conserve warmth. [7]

Treecreepers forage on the trunks of large trees. They move up the trunk in a progression of small hops. They fly to the bottom of a tree, then climb in a spiral fashion searching for prey. The majority of their diet is composed of small invertebrates, including insects and their larvae, spiders, and pseudoscorpions. In hard times seeds and fruits may be taken, and a few species will also visit birdfeeders. Species in both genera have been recorded joining mixed-species feeding flocks. [7]

The treecreepers are monogamous and territorial. Nests and eggs vary between the genera: the Certhia treecreepers usually nest in a gap between the tree bark and the tree, whereas the nest of the spotted creeper is placed in the fork of a branch. [7] Incubation lasts 14 to 15 days, and young fledge after 15 to 16 days. [6]

Related Research Articles

<span class="mw-page-title-main">Passerine</span> Any bird of the order Passeriformes, sometimes known as perching birds

A passerine is any bird of the order Passeriformes which includes more than half of all bird species. Sometimes known as perching birds, passerines generally have an anisodactyl arrangement of their toes, which facilitates perching.

<span class="mw-page-title-main">Nuthatch</span> Genus, Sitta, of small passerine birds from the Northern Hemisphere

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.

<span class="mw-page-title-main">Wallcreeper</span> Species of bird

The wallcreeper 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.

<span class="mw-page-title-main">Philippine creeper</span> Genus of birds

The Philippine creepers or rhabdornises are small passerine birds and form the genus Rhabdornis. They are endemic to the Philippines. They do not migrate, other than to make local movements.

<span class="mw-page-title-main">Indian spotted creeper</span> Species of bird

The Indian spotted creeper is a small passerine bird, which is a member of the subfamily Salpornithinae which is placed along with the treecreepers in the family Certhiidae. This small bird has a marbled black and white plumage that makes it difficult to spot as it forages on the trunks of dark, deeply fissured trees where it picks out insect prey using its curved bill. It is found in patchily distributed localities mainly in the dry scrub and open deciduous forests of northern and central peninsular India. It does not migrate. Their inclusion along with the treecreepers is not certain and some studies find them more closely related to the nuthatches while others suggest a close relation to the wallcreeper. They lack the stiff tail feathers of treecreepers and do not use their tail for supporting them while creeping vertically along tree trunks.

<span class="mw-page-title-main">Eurasian treecreeper</span> Small passerine bird found in temperate Eurasia

The Eurasian treecreeper or common treecreeper 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 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.

<span class="mw-page-title-main">Short-toed treecreeper</span> Species of bird

The short-toed treecreeper 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 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.

<span class="mw-page-title-main">Sittella</span> Genus of birds

The sittellas are a family, Neosittidae, of small passerine birds found only in Australasia. They resemble nuthatches, but whilst they were considered to be in that family for many years they are now afforded their own family. They do not migrate other than for local movements.

<span class="mw-page-title-main">Beautiful nuthatch</span> Species of bird

The beautiful nuthatch is a bird species in the family Sittidae, collectively known as nuthatches. It is a large nuthatch, measuring 16.5 cm (6.5 in) in length, that is not sexually dimorphic. Its coloration and markings are dramatic, the upper parts being black and azure, streaked with white and pale blue on the head and lined with the same colors on the wing feathers. The underparts are orange, and the eyebrow and throat are ochre. An irregular, dark eyestripe highlights its eye. S. formosa's ecology is not fully described, but it is known to feed on small insects and larvae found on the trunks and epiphyte-covered branches of trees in its range. Reproduction takes place from April to May; the nest is placed in the hole of an oak, rhododendron, or other large tree. The nest is made of plant material and fur in which the bird typically lays four to six eggs.

<span class="mw-page-title-main">Brown creeper</span> Species of bird

The brown creeper, also known as the American treecreeper, is a small songbird, the only North American member of the treecreeper family Certhiidae.

<i>Certhia</i> Genus of birds

Certhia is the genus of birds containing the typical treecreepers, which together with the African and Indian spotted creepers make up the family Certhiidae.

<i>Salpornis</i> Genus of birds

Salpornis is a genus of bird which is usually included in the family Certhiidae. The genus has in the past been included with the nuthatches in the family Sittidae or placed in a family of its own, the Salpornithidae. Molecular phylogenetic analyses show them to be definitely within the Certhioidea but still leaves some uncertainty about their placement in relation to the genera Sitta, Tichodroma and Certhia. While they appear similar to the treecreepers (Certhia), they do not use their tails to support them while climbing and some molecular evidence shows them to be closer to the nuthatches (Sitta) while another study suggests a closer relation to the wallcreeper Tichodroma muraria. The generic name is derived from the Greek salpinktes for wren and ornis for bird.

<i>Tichodroma</i> Genus of bird

Tichodroma is the only known genus in the family Tichodromidae. Initially, Linnaeus placed Tichodroma in the family Certhiidae, along with the treecreepers., while other authorities have placed it the nuthatch family Sittidae, as its own subfamily. A 2016 phylogenetic study of members in the superfamily Certhioidea suggests it is a sister of the Sittidae.

<span class="mw-page-title-main">Blue nuthatch</span> Species of small passerine bird

The blue nuthatch is a bird species in the nuthatch family Sittidae. It is a medium-sized nuthatch, measuring 13.5 cm (5.3 in) in length. The species, which shows slight sexual dimorphism, has dramatic coloration unlike any other member of its genus. Its head is black or blackish-blue dark blue upperparts close to purple with azure feathers. The wings are edged with black. The throat and chest are white or a washed buff color, contrasting with the upperparts and the belly of a very dark blue; the covert feathers are generally clear, blue-gray or purplish.

<span class="mw-page-title-main">Hodgson's treecreeper</span> Species of bird

Hodgson's treecreeper is a small passerine bird from the southern rim of the Himalayas. Its specific distinctness from the common treecreeper was recently validated.

<span class="mw-page-title-main">Hume's treecreeper</span> Species of bird

Hume's treecreeper was earlier included within the brown-throated treecreeper complex and identified as a separate species on the basis of their distinctive calls. This species in the treecreeper family is found in Assam, Myanmar, Shan Mountains, Northern Thailand, Laos and the Dalat Plateau.

<span class="mw-page-title-main">African spotted creeper</span> Species of bird

The African spotted creeper is a small passerine bird, which is a member of the subfamily Salpornithinae of the treecreeper family Certhiidae. It is found in sub-Saharan Africa in open deciduous forest and mango groves. It does not migrate other than local movements.

<span class="mw-page-title-main">Certhioidea</span> Superfamily of birds

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.

<span class="mw-page-title-main">Muscicapida</span> Clade of birds

Muscicapida is a clade of birds in the order Passeriformes. Oliveros, C.H. et al. (2019) suggested a gondwanan migration of this lineage from Australia to Eurasia.

Albrecht Manegold is a German ornithologist and paleontologist. He is the curator of the vertebrate collection at the State Museum of Natural History Karlsruhe. He is known for contributions to the study of early passerine evolution. He has described extinct passerines and piciformes including the fossil treecreeper Certhia rummeli and the fossil woodpecker Australopicus nelsonmandelai.

References

  1. 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 modern birds (Neornithes): Toward an avian tree of life." p468489 in Assembling the tree of life (J. Cracraft and M. J. Donoghue, eds.). Oxford University Press, New York. ISBN   0-19-517234-5
  2. Manegold, Albrecht (April 2008). "Earliest fossil record of the Certhioidea (treecreepers and allies) from the early Miocene of Germany". Journal of Ornithology. 149 (2): 223–228. doi:10.1007/s10336-007-0263-9. S2CID   11900733.
  3. Oliveros, C.H.; et al. (2019). "Earth history and the passerine superradiation". Proceedings of the National Academy of Sciences of the United States. 116 (16): 7916–7925. Bibcode:2019PNAS..116.7916O. doi: 10.1073/pnas.1813206116 . PMC   6475423 . PMID   30936315.
  4. "Treecreeper Certhia familiaris[Linnaeus, 1758]". BirdFacts. British Trust for Ornithology (BTO). Retrieved 2008-05-20.
  5. Manegold, Albrecht (2008). "Earliest fossil record of the Certhioidea (treecreepers and allies) from the early Miocene of Germany". Journal of Ornithology. 149 (2): 223–228. doi:10.1007/s10336-007-0263-9. ISSN   2193-7192. S2CID   11900733.
  6. 1 2 Mead, Christopher J. (2003). "Holarctic Treecreepers" . In Perrins, Christopher (ed.). The Firefly Encyclopedia of Birds. Firefly Books. pp.  538–540. ISBN   1-55297-777-3.
  7. 1 2 3 4 Harrap, Simon (2008). "Family Certhiidae (Treecreepers)". In Josep, del Hoyo; Andrew, Elliott; David, Christie (eds.). Handbook of the Birds of the World. Volume 13, Penduline-tits to Shrikes. Barcelona: Lynx Edicions. pp. 166–179. ISBN   978-84-96553-45-3.