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Horned lark

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Horned lark
Temporal range: Calabrian–Present
↓
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Alaudidae
Genus: Eremophila
Species:
E. alpestris
Binomial name
Eremophila alpestris
Subspecies

See text

Distribution map of horned lark
  Breeding
  Resident
  Passage
  Non-breeding
Synonyms
  • Alauda alpestris Linnaeus, 1758
  • Chionophila alpestris (Linnaeus, 1758)
  • Otocorys alpestris (Linnaeus, 1758)

The horned lark or shore lark (Eremophila alpestris) is a species of lark in the family Alaudidae found across the northern hemisphere. It is known as "horned lark" in North America and "shore lark" in Europe.

Taxonomy

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The horned lark was formally described in 1758 by the Swedish naturalist Carl Linnaeus in the tenth edition of his Systema Naturae under the binomial name Alauda alpestris.[2] Linnaeus based his account on the description and illustration by the English naturalist Mark Catesby in his book The Natural History of Carolina, Florida and the Bahama Islands that was published between 1729 and 1732.[3] Linnaeus specified the type locality as North America but this has been restricted to the coastal areas of South Carolina.[4] The horned lark is now placed together with Temminck's lark in the genus Eremophila that was introduced in 1828 by the German naturalist Friedrich Boie.[5][6] The specific epithet alpestris is Latin meaning "of the high mountains", from Alpes, the Alps.[7] A molecular genetic study of the Alaudidae published in 2023 found that Temminck's lark (Eremophila bilopha) was embedded in a clade containing taxa currently classed as subspecies of the horned lark.[8]

The horned lark is suggested to have diverged from Temminck's lark (E. bilopha) around the Early-Middle Pleistocene, according to genomic divergence estimates.[9][10] The horned lark is known from around a dozen localities of Late Pleistocene age, including those in Italy,[11] Russia, The United Kingdom and the United States. The earliest known fossil is from the Calabrian of Spain, around 1–0.8 million years old.[12] In 2020, a 46,000 year old frozen specimen was described from the Russian Far East.[13]

A 2014 genetic analysis suggested that the species consists of six clades that in the future may warrant recognition as separate species.[9] A 2020 study also suggested splitting of the species, but into 4 species instead, the Himalayan horned lark E. longirostris, mountain horned lark E. penicillata, common horned lark E. alpestris (sensu stricto), alongside Temminck's lark.[10]

Subspecies

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Forty-two subspecies are recognized:[6]

  • Pallid horned lark (E. a. arcticola) – (Oberholser, 1902): Found from northern Alaska to British Columbia (western Canada)
  • Hoyt's horned lark (E. a. hoyti) – (Bishop, 1896): Found in northern Canada
  • Northern American horned lark (E. a. alpestris) – (Linnaeus, 1758): Found in eastern Canada
  • Dusky horned lark (E. a. merrilli) – (Dwight, 1890): Found on western coast of Canada and USA
  • Streaked horned lark (E. a. strigata) – (Henshaw, 1884): Found on coastal southern British Columbia (western Canada) to coastal Oregon (western USA)
  • St. Helens horned lark (E. a. alpina) – (Jewett, 1943): Found on mountains of western Washington (northwestern USA)
  • Oregon horned lark (E. a. lamprochroma) – (Oberholser, 1932): Found on inland mountains of western USA
  • Desert horned lark (E. a. leucolaema) – Coues, 1874: Also known as the pallid horned lark. Found from southern Alberta (southwestern Canada) through north-central and central USA
  • Saskatchewan horned lark (E. a. enthymia) – (Oberholser, 1902): Found from south-central Canada to Oklahoma and Texas (central USA)
  • Prairie horned lark (E. a. praticola) – (Henshaw, 1884): Found in southeastern Canada, northeastern and east-central USA
  • Sierra horned lark (E. a. sierrae) – (Oberholser, 1920): Also known as the Sierra Nevada horned lark. Found on mountains of northeastern California (western USA)
  • Ruddy horned lark (E. a. rubea) – (Henshaw, 1884): Found in central California (western USA)
  • Utah horned lark (E. a. utahensis) – (Behle, 1938): Found on mountains of west-central USA
  • Island horned lark (E. a. insularis) – (Dwight, 1890): Found on islands off southern California (western USA)
  • California horned lark (E. a. actia) – (Oberholser, 1902): Found on coastal mountains of southern California (western USA) and northern Baja California (northwestern Mexico)
  • Mohave horned lark (E. a. ammophila) – (Oberholser, 1902): Found in deserts of southeastern California and southwestern Nevada (southwestern USA)
  • Sonora horned lark (E. a. leucansiptila) – (Oberholser, 1902): Found in deserts of southern Nevada, western Arizona (southwestern USA) and northwestern Mexico
  • Montezuma horned lark (E. a. occidentalis) – (McCall, 1851): Originally described as a separate species. Found in northern Arizona to central New Mexico (southwestern USA)
  • Scorched horned lark (E. a. adusta) – (Dwight, 1890): Found in southern Arizona and southern New Mexico (southwestern USA), possibly north-central Mexico
  • Magdalena horned lark (E. a. enertera) – (Oberholser, 1907): Found in central Baja California (northwestern Mexico)
  • Texas horned lark (E. a. giraudi) – (Henshaw, 1884): Found in coastal south-central USA and northeastern Mexico
  • E. a. aphrasta – (Oberholser, 1902): Found in Chihuahua and Durango (northwestern Mexico)
  • E. a. lactea – Phillips, AR, 1970: Found in Coahuila (north-central Mexico)
  • E. a. diaphora – (Oberholser, 1902): Found in southern Coahuila to northeastern Puebla (north-central and eastern Mexico)
  • Mexican horned lark (E. a. chrysolaema) – (Wagler, 1831): Originally described as a separate species in the genus Alauda. Found from west-central to east-central Mexico
  • E. a. oaxacae – (Nelson, 1897): Found in southern Mexico
  • Colombian horned lark (E. a. peregrina) – (Sclater, PL, 1855): Originally described as a separate species. Found in Colombia
  • Shore lark (E. a. flava) – (Gmelin, JF, 1789): Originally described as a separate species in the genus Alauda. Found in northern Europe and northern Asia
  • Steppe horned lark (E. a. brandti) – (Dresser, 1874): Also known as Brandt's horned lark. Originally described as a separate species. Found from southeastern European Russia to western Mongolia and northern China
  • Moroccan horned lark (E. a. atlas) – (Whitaker, 1898): This subspecies is also called "shore lark". Originally described as a separate species. Found in Morocco
  • Balkan horned lark (E. a. balcanica) – (Reichenow, 1895): This subspecies is also called "shore lark". Found in southern Balkans and Greece
  • E. a. kumerloevei – Roselaar, 1995: Found in western and central Asia Minor
  • Southern horned lark (E. a. penicillata) – (Gould, 1838): This subspecies is also called "shore lark". Originally described as a separate species in the genus Alauda. Found from eastern Turkey and the Caucasus to Iran
  • Lebanon horned lark (E. a. bicornis) – (Brehm, CL, 1842): This subspecies is also called "shore lark". Originally described as a separate species. Found from Lebanon to Israel/Syria border
  • Pamir horned lark (E. a. albigula) – (Bonaparte, 1850): This subspecies is also called "shore lark". Originally described as a separate species. Found from northeastern Iran and Turkmenistan to northwestern Pakistan
  • E. a. argalea – (Oberholser, 1902): This subspecies is also called "shore lark". Found in extreme western China
  • Przewalski's lark (E. a. teleschowi) – (Przewalski, 1887): This subspecies is also called "shore lark". Originally described as a separate species. Found in western and west-central China
  • E. a. przewalskii – (Bianchi, 1904): This subspecies is also called "shore lark". Found in northern Qinghai (west-central China)
  • E. a. nigrifrons – (Przewalski, 1876): This subspecies is also called "shore lark". Originally described as a separate species. Found in northeastern Qinghai (west-central China)
  • Long-billed horned lark (E. a. longirostris) – (Moore, F, 1856): This subspecies is also called "shore lark". Originally described as a separate species. Found in northeastern Pakistan and western Himalayas
  • E. a. elwesi – (Blanford, 1872): This subspecies is also called "shore lark". Originally described as a separate species. Found on southern and eastern Tibetan Plateau
  • E. a. khamensis – (Bianchi, 1904): This subspecies is also called "shore lark". Found in southwestern and south-central China

Description

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Unlike most other larks, this is a distinctive-looking species on the ground, mainly brown-grey above and pale below, with a striking black and yellow face pattern. Except for the central feathers, the tail is mostly black, contrasting with the paler body; this contrast is especially noticeable when the bird is in flight. The summer male has black "horns",[clarification needed] which give this species its American name. North America has a number of races distinguished by the face pattern and back colour of males, especially in summer. The southern European mountain race E. a. penicillata is greyer above, and the yellow of the face pattern is replaced with white.

Measurements:[14]

  • Length: 6.3-7.9 in (16-20 cm)
  • Weight: 1.0-1.7 oz (28-48 g)
  • Wingspan: 11.8-13.4 in (30-34 cm)

Vocalizations are high-pitched, lisping or tinkling, and weak. The song, given in flight as is common among larks, consists of a few chips followed by a warbling, ascending trill.

Distribution and habitat

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The horned lark breeds across much of North America from the high Arctic south to the Isthmus of Tehuantepec, northernmost Europe and Asia and in the mountains of southeast Europe. There is also an isolated population on a plateau in Colombia. It is mainly resident in the south of its range, but northern populations of this passerine bird are migratory, moving further south in winter.

This is a bird of open ground. In Eurasia it breeds above the tree line in mountains and the far north. In most of Europe, it is most often seen on seashore flats in winter, leading to the European name. In the UK it is found as a winter stopover along the coasts and in eastern England. In North America, where there are no other larks to compete with, it is also found on farmland, on prairies, in deserts, on golf courses and airports.

Breeding and nesting

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Males defend territories from other males during breeding season and females will occasionally chase away intruding females. Courting involves the male singing to the female while flying above her in circles. He then will fold his wings in and dive towards the female, opening his wings just before reaching the ground.[15] The nest site is selected in the early spring by only the female and is either a natural depression in the bare ground or she digs a cavity using her bill and feet.[16] She will spend 2–4 days preparing the site before building her nest. She weaves fine grasses, cornstalks, small roots, and other plant material and lines it with down, fur, feathers, and occasionally lint. The nest is about 3-4 inches in diameter with the interior diameter about 2.5 in wide and 1.5 in deep. It has been noted that she often adds a “doorstep” of pebbles, corncobs, or dung on one side of the nest. It is speculated that this is used to cover the excavated dirt and hide her nest more.[17]

Females will lay a clutch of 2-5 gray eggs with brown spots, each about 1 in long and 0.5 in wide. Incubation will take 10–12 days until hatching and then the nestling period will take 8–10 days. During the nestling period, the chick is fed and defended by both parents. A female in the south can lay 2-3 broods a year while in the north, 1 brood a year is more common.[18]

The structure of horned lark nests can vary depending on the microclimate, prevailing weather and predation risk, revealing flexibility in nesting behaviour to adjust to changing environmental conditions to maintain nest survival and nestling size development.[19]

Status and conservation

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Horned lark populations are declining according to the North American Breeding Bird Survey. In 2016, the Partners in Flight Landbird Conservation Plan detailed the horned lark as a “Common Bird in Steep Decline,” but the horned lark as of 2016 is not on the State of North America's Birds’ Watch List.[16] This species’ decline could be contributed to the loss of habitat due to agricultural pesticides, the disturbed sites the birds prefer reverting to forested lands through reforestation efforts, urbanization and human encroachment as well as collisions at wind farms and at airports.[17] In 2013, the U.S. Fish and Wildlife Service listed the subspecies streaked horned lark as threatened under the Endangered Species Act.[20]

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References

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  1. ^ BirdLife International (2019). "Eremophila alpestris". IUCN Red List of Threatened Species. 2019: e.T22717434A137693170. doi:10.2305/IUCN.UK.2019-3.RLTS.T22717434A137693170.en. Retrieved 12 November 2021.
  2. ^ Linnaeus, Carl (1758). Systema Naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis (in Latin). Vol. 1 (10th ed.). Holmiae (Stockholm): Laurentii Salvii. p. 166.
  3. ^ Catesby, Mark (1729–1732). The Natural History of Carolina, Florida and the Bahama Islands (in English and French). Vol. 1. London: W. Innys and R. Manby. p. 32.
  4. ^ Mayr, Ernst; Greenway, James C. Jr, eds. (1960). Check-List of Birds of the World. Vol. 9. Cambridge, Massachusetts: Museum of Comparative Zoology. p. 76.
  5. ^ Boie, Friedrich (1828). "Bemerkungen über mehrere neue Vogelgattungen". Isis von Oken (in German). 21. Cols 312–328 [322].
  6. ^ a b Gill, Frank; Donsker, David; Rasmussen, Pamela, eds. (December 2023). "Nicators, Bearded Reedling, larks". IOC World Bird List Version 14.1. International Ornithologists' Union. Retrieved 26 June 2024.
  7. ^ Jobling, James A (2010). The Helm Dictionary of Scientific Bird Names. London: Christopher Helm. pp. 42, 148. ISBN 978-1-4081-2501-4.
  8. ^ Alström, P.; Mohammadi, Z.; Enbody, E.D.; Irestedt, M.; Engelbrecht, D.; Crochet, P.-A.; Guillaumet, A.; Rancilhac, L.; Tieleman, B.I.; Olsson, U.; Donald, P.F.; Stervander, M. (2023). "Systematics of the avian family Alaudidae using multilocus and genomic data". Avian Research. 14: 100095. Bibcode:2023AvRes..1400095A. doi:10.1016/j.avrs.2023.100095.
  9. ^ a b Drovetski, Sergei V.; Raković, Marko; Semenov, Georgy; Fadeev, Igor V.; Red'kin, Yaroslav A. (2014-01-01). "Limited phylogeographic signal in sex-linked and autosomal loci despite geographically, ecologically, and phenotypically concordant structure of mtDNA variation in the Holarctic avian genus Eremophila". PLOS ONE. 9 (1): e87570. Bibcode:2014PLoSO...987570D. doi:10.1371/journal.pone.0087570. ISSN 1932-6203. PMC 3907499. PMID 24498139.
  10. ^ a b Ghorbani, Fatemeh; Aliabadian, Mansour; Olsson, Urban; Donald, Paul F.; Khan, Aleem A.; Alström, Per (January 2020). "Mitochondrial phylogeography of the genus Eremophila confirms underestimated species diversity in the Palearctic". Journal of Ornithology. 161 (1): 297–312. doi:10.1007/s10336-019-01714-2. ISSN 2193-7192. S2CID 203439127.
  11. ^ CARRERA, Lisa; PAVIA, Marco; PERESANI, Marco; ROMANDINI, Matteo (2018). "Late Pleistocene fossil birds from Buso Doppio del Broion Cave (North-Eastern Italy): implications for palaeoecology, palaeoenvironment and palaeoclimate". Bollettino della Società Paleontologica Italiana (2): 145–174. doi:10.4435/BSPI.2018.10 (inactive 2024-11-20). ISSN 0375-7633.{{cite journal}}: CS1 maint: DOI inactive as of November 2024 (link)
  12. ^ Sánchez-Marco, Antonio (September 1999). "Implications of the avian fauna for paleoecology in the Early Pleistocene of the Iberian Peninsula". Journal of Human Evolution. 37 (3–4): 375–388. Bibcode:1999JHumE..37..375S. doi:10.1006/jhev.1999.0345. PMID 10496993.
  13. ^ Dussex, Nicolas; Stanton, David W. G.; Sigeman, Hanna; Ericson, Per G. P.; Gill, Jacquelyn; Fisher, Daniel C.; Protopopov, Albert V.; Herridge, Victoria L.; Plotnikov, Valery; Hansson, Bengt; Dalén, Love (2020-02-21). "Biomolecular analyses reveal the age, sex and species identity of a near-intact Pleistocene bird carcass". Communications Biology. 3 (1): 84. doi:10.1038/s42003-020-0806-7. ISSN 2399-3642. PMC 7035339. PMID 32081985. S2CID 211217336.
  14. ^ "Horned Lark Identification, All About Birds, Cornell Lab of Ornithology". www.allaboutbirds.org. Retrieved 2020-09-28.
  15. ^ "Horned Lark - Eremophila alpestris | Wildlife Journal Junior". nhpbs.org.
  16. ^ a b "Horned Lark Life History, All About Birds, Cornell Lab of Ornithology". www.allaboutbirds.org.
  17. ^ a b "Horned Lark". American Bird Conservancy.
  18. ^ "Horned Lark". Audubon. 13 November 2014.
  19. ^ de Zwaan, D.R.; Martin, K. (2018). "Substrate and structure of ground nests have fitness consequences for an alpine songbird". Ibis. 160 (4): 790–804. doi:10.1111/ibi.12582.
  20. ^ "Species Fact Sheet: Streaked horned lark". U.S. Fish and Wildlife Service. 2014-08-05. Retrieved 2014-08-19.

Further reading

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  • van den Berg, Arnoud (2005) Morphology of Atlas Horned Lark Dutch Birding 27(4):256–8
  • Small, Brian (2002) The Horned Lark on the Isles of Scilly Birding World 15(3): 111–20 (discusses a possible Nearctic race bird on the Isles of Scilly in 2001)
  • Dickinson, E.C.; R.W.R.J. Dekker; S. Eck & S. Somadikarta (2001). "Systematic notes on Asian birds. 12. Types of the Alaudidae". Zool. Verh. Leiden. 335: 85–126.
  • Seebohm, H (1884). "On the East-Asiatic Shore-Lark (Otocorys longirostris)". Ibis. 26 (2): 184–188. doi:10.1111/j.1474-919x.1884.tb01153.x.
  • Beason, Robert (1995). Horned Lark (Eremophila alpestris), version 2.0. In The Birds of North America. Ithaca, New York, USA: Cornell Lab of Ornithology.
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