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Tichodroma muraria

Tichodroma muraria (*)

Superregnum: Eukaryota
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Superclassis: Sarcopterygii
Superclassis: Tetrapoda
Cladus: Reptiliomorpha
Cladus: Amniota
Classis: Reptilia
Cladus: Eureptilia
Cladus: Romeriida
Subclassis: Diapsida
Cladus: Sauria
Infraclassis: Archosauromorpha
Cladus: Crurotarsi
Divisio: Archosauria
Cladus: Avemetatarsalia
Cladus: Ornithodira
Subtaxon: Dinosauromorpha
Cladus: Dinosauriformes
Cladus: Dracohors
Cladus: Dinosauria
Ordo: Saurischia
Cladus: Eusaurischia
Cladus: Theropoda
Cladus: Neotheropoda
Cladus: Averostra
Cladus: Tetanurae
Cladus: Avetheropoda
Cladus: Coelurosauria
Cladus: Tyrannoraptora
Cladus: Maniraptoromorpha
Cladus: Maniraptoriformes
Cladus: Maniraptora
Cladus: Pennaraptora
Cladus: Paraves
Cladus: Eumaniraptora
Cladus: Avialae
Infraclassis: Aves
Cladus: Euavialae
Cladus: Avebrevicauda
Cladus: Pygostylia
Cladus: Ornithothoraces
Cladus: Euornithes
Cladus: Ornithuromorpha
Cladus: Ornithurae
Cladus: Carinatae
Parvclassis: Neornithes
Cohors: Neognathae
Cladus: Neoaves
Cladus: Telluraves
Cladus: Australaves
Ordo: Passeriformes
Subordo: Passeri
Infraordo: Passerida
Superfamilia: Certhioidea
Familia: Tichodromidae

Genus: Tichodroma
Species: Tichodroma muraria
Subspecies: T. m. muraria - T. m. nepalensis

Tichodroma muraria (Linnaeus, 1766)

Systema Naturae ed.12 p. 184
Vernacular names
български: Скалолазка
català: Pela-roques
čeština: Zedníček skalní
Deutsch: Mauerläufer
Ελληνικά: Σβαρνίστρα
English: Wallcreeper
Esperanto: Tikodromedoj
español: Treparriscos
فارسی: دیوارخزک
suomi: Kalliokiipijä
français: Tichodrome échelette
magyar: Hajnalmadár
հայերեն: Մագլցող կարմրաթև
italiano: Picchio muraiolo
日本語: カベバシリ
ქართული: წითელფრთიანი კლდეცოცია
македонски: Карполазачка
Nederlands: Rotskruiper
polski: Pomurnik
português: Trepadeira-dos-muros
slovenčina: Murárik červenokrídly
svenska: Murkrypare
Türkçe: Duvar tırmaşık kuşu
українська: Червонокрилий стінолаз

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.[2] 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.[3] At least one other species of wallcreeper is known from the fossil record, Tichodroma capeki (Late Miocene of Polgardi, Hungary).[4]

The genus name Tichodroma comes from the Ancient Greek teikhos "wall", and dromos "runner". The specific muraria is Medieval Latin for "of walls", from Latin murus, "wall".[5] Alternatively, the wallcreeper is named the red-winged wall creeper.[6]

Two subspecies are recognized:[7]

European wallcreeper (T. m. muraria) - (Linnaeus, 1766): Found from southern and eastern Europe to the Caucasus and western Iran
T. m. nepalensis - Bonaparte, 1850: Originally described as a separate species. Found from Kazakhstan, Turkmenistan and eastern Iran to eastern China


The wallcreeper is a 15.5–17-centimetre (6.1–6.7 in) long bird, with a mass of 17–19 grams (0.60–0.67 oz). Its plumage is primarily blue-grey, with darker flight and tail feathers. Its most striking plumage feature, though, are its extraordinary crimson wings. Largely hidden when the wings are folded, this bright colouring covers most of the covert feathers, and the basal half of the primaries and secondaries. The subspecies T. m. nepalensis is slightly darker than the nominate race.

Though largely silent, both male and female wallcreepers sing, the females generally only while defending feeding territories in the winter.[8] The song is a high-pitched, drawn-out whistle, with notes that alternately rise and fall.[9] During the breeding season, the male sings while perched or climbing.
Distribution and habitat
The wallcreeper lives in alpine areas

A bird of the high mountains, the wallcreeper breeds at elevations ranging between 1,000 and 3,000 metres (3,300 and 9,800 ft).[9] It is largely resident across its range, but moves to lower elevations in winter, when it is found on buildings and in quarries. In France it regularly and repeatedly winters on cathedrals and viaducts in Brittany and Normandy.[10] Birds have wintered as far afield as England and the Netherlands, where one spent two consecutive winters between 1989 and 1991 at the Vrije Universiteit in Amsterdam.[11] The species is resident across much of the Himalayas, ranging across India, Nepal, Bhutan and parts of Tibet and also as a winter visitor in Bangladesh.[12][13]
Behaviour and ecology

This species can be quite tame, but is often surprisingly difficult to see on mountain faces. While it may be confiding in the breeding and non-breeding seasons, and vagrant birds especially are extremely tame, they will still hide when they are aware of being watched, and will hesitate before entering the nest and even take roundabout routes towards the nest during prolonged observations.[14]

Wallcreepers are territorial, and pairs vigorously defend their breeding territory during the summer. During the winter the wallcreeper is solitary, with males and females defending individual feeding territories. The size of these feeding territories is hard to estimate but may comprise a single large quarry or rock massif; or, alternatively, a series of smaller quarries and rock faces. Wallcreepers may travel some distances from roosting sites to feeding territories. They have also been demonstrated showing site fidelity to winter feeding territories in consecutive years.[14]

The female wallcreeper builds a cup nest of grass and moss, sheltered deep in a rock crevice, hole or cave.[8] The nest is lined with softer materials, often including feathers or wool,[2] and typically has two entrances. The female usually lays 4–5 eggs, though clutches as small as three have been found. The white eggs measure 21 mm long, and are marked with a small number of black or reddish-brown speckles. Once her entire clutch has been laid, the female incubates the eggs for 19–20 days, until they hatch. During incubation, she is regularly fed by her mate.[2] Young are altricial, which means they are blind, featherless and helpless at birth. Both parents feed the nestlings for a period of 28–30 days, until the young birds fledge. Each pair raises a single brood a year.

The wallcreeper is an insectivore, feeding on terrestrial invertebrates—primarily insects and spiders—gleaned from rock faces.[8] It sometimes also chases flying insects in short sallies from a rock wall perch. Feeding birds move across a cliff face in short flights and quick hops, often with their wings partially spread.

BirdLife International (2019). "Tichodroma muraria". IUCN Red List of Threatened Species. 2019: e.T22711234A155489183. doi:10.2305/IUCN.UK.2019-3.RLTS.T22711234A155489183.en. Retrieved 19 November 2021.
Campbell, Bruce; Elizabeth Lack (1985). A Dictionary of Birds. Calton: T & A D Poyser. pp. 638–39. ISBN 0-85661-039-9.
Zhao, Min; Alström, Per; Olsson, Urban; Qu, Yanhua; Lei, Fumin (2016). "Phylogenetic position of the Wallcreeper Tichodroma muraria". Journal of Ornithology. 157 (3): 913. doi:10.1007/s10336-016-1340-8. S2CID 26838254.
Kessler, E. 2013. Neogene songbirds (Aves, Passeriformes) from Hungary. – Hantkeniana, Budapest, 2013, 8: 37-149.
Jobling, James A (2010). The Helm Dictionary of Scientific Bird Names. London: Christopher Helm. pp. 262, 385. ISBN 978-1-4081-2501-4.
"Tichodroma muraria (Wallcreeper) - Avibase". Retrieved 2017-07-23.
"Nuthatches, Wallcreeper, treecreepers, mockingbirds, starlings & oxpeckers « IOC World Bird List". Retrieved 2017-07-23.
Ehrlich, Paul R.; Dobkin, David S.; Wheye, Darryl; Pimm, Stuart L. (1994). The Birdwatcher's Handbook. Oxford University Press. pp. 440. ISBN 978-0198584070.
Svensson, Lars; Peter J. Grant (1999). Collins Bird Guide. London: HarperCollins. pp. 324–5. (in French) (in Dutch)
Kirwan, Guy M.; Löhrl, Hans; Wilson, Mike (4 March 2020). "Wallcreeper (Tichodroma muraria)". Birds of the World.
Harrap, Simon (2008), "Family Tichodromidae (Wallcreeper)", in del Hoyo, Josep; Elliott, Andrew; Christie, David (eds.), Handbook of the Birds of the World. Volume 13, Penduline-tits to Shrikes, Barcelona: Lynx Edicions, pp. 146–165, ISBN 978-84-96553-45-3

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