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Comprehensive Description

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The Cordilleran flycatcher (Empidonax occidentalis), with its seasonal territories extending from the U.S.-Canadian border to southern Mexico, is found primarily in the Rocky Mountains. It belongs to the order Passeriformes and the family Tyrannidae (Lowther et al 2016). The preferred habitat for E. occidentalis is mainly deciduous or mixed deciduous-coniferous forests and shady canyons, but while breeding they are found in mountainous regions and they forage in conifers like Douglas Fir and various pines. They tend to inhabit slightly drier and more open areas than the almost identical Pacific-slope flycatcher (E. difficilis), which is found in the coast mountain ranges of the West, rather than in the Rockies (Kaufman 2018).

The adult Cordilleran flycatcher has yellow-olive to olive coloration on its back with a yellow underside, the yellow extending up to the throat under its broad bill (Lowther et al 2016). It has prominent olive and white wing-bars and pale yellow eye rings which form into a teardrop shape. It also typically has four long, olive-brown tail feathers. Both males and females are approximately 5.5-6.7 inches in length, weigh about 0.4-0.5 ounces, and have a wingspan of roughly 8.7 inches. The juveniles look very similar to the adults, but they have distinct buffy wing-bars that transition to white and olive as they mature (All About Birds 2018). This bird is difficult to spot since it is small in size but can be identified by the male’s call, a thin, high-pitched, distinctly two-part tii-seet, which differs somewhat from the upslurred tseeweep of E. difficilis (Sibley 2003).

The Cordilleran flycatcher has a distinctive feeding behavior, as it watches from a perch and then flies out to catch insects in the air or from trees and shrubs. Its diet consists mostly of insects, including wasps, bees, flies, caterpillars, moths, and beetles. The parents deliver the food to the nestlings until they take their first flight, which occurs between 14-18 days. Since the Cordilleran flycatcher is rarely spotted, it is apparently a relatively solitary bird that spends most of its maintenance time alone (Kaufman 2018).

E. occidentalis usually lays three to four white eggs with brown blotches concentrated near the larger end, which are incubated for about 14-15 days. Nest sites are either in a small tree, in a cleft in a vertical streambank, on a stump, or in the upturned roots of a fallen tree. The nests are built by the female and are made up of moss, grass, roots, leaves, and feathers. When the Cordilleran flycatcher migrates, it usually arrives at breeding grounds in May and leaves in September (All About Birds 2018).

Data from the Breeding Bird Survey for E. occidentalis is combined with that for E. difficilis and shows that the estimated population for both species in the United States and Canada is 8.3 million individuals (Lowther et al 2016).

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Nikki Harada, Francesca Robello; Editor: Dr. Gordon Miller. Seattle University, EVST 2100: Natural History, Spring 2018
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Empidonax occidentalis ( Asturian )

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Map marker icon – Nicolas Mollet – Birds – Nature – white.png Les especies d'aves con nome común en llingua asturiana márquense como NOA. En casu contrariu, conséñase'l nome científicu o de la SEO.

Empidonax occidentalis, ye una especie d'ave paseriforme de la familia Tyrannidae. Ye un ave pequeña con un tamañu de 13 a 17 cm, propiu de Canadá, Estaos Xuníos y Méxicu,[1] que s'alimenta d'inseutos.

Descripción

Les aves adultes tienen dorso oliva gris, más escuru nes ales y la cola, col banduyu amarellentáu; tienen un aniellu de güeyu blancu visible en forma de llárima, barres de nala blanca, y una cola curtia. Munches especies d'esti xéneru tienen l'aspeutu similar. La meyor manera d'estremales ye poles sos vocalizaciones y pol so hábitat de cría. L'apariencia del mosqueru cordillerano ye práuticamente idéntica a la del mosqueru del Pacíficu. Estos dos especies fueron enantes consideraes como una sola especie conocida como mosqueru occidental. El mosqueru del Pacíficu reproducir nos montes de la mariña del Pacíficu dende California hasta Alaska, el mosqueru cordillerano añera nes Montes Predresos. Estrémense tamién polos sos cantares y llamaes.

Distribución y hábitat

Les poblaciones qu'añeren en Canadá y Estaos Xuníos, enviernen en Méxicu, onde les aves centrales sur mexicanes son residentes. Les aves migratories tán na mariña occidental de Jalisco escontra'l norte, y depués a les rexones del interior, nun corredor nel lladral occidental de la Sierra Madre Occidental. El so hábitat de reproducción preferíu ye'l monte de pinu o monte de coníferes, polo xeneral cerca d'una corriente d'agua corriente.

Comportamientu

Constrúin el nial ente les cañes d'un árbol, polo xeneral nuna caña horizontal na parte baxa. Les femes ponen de 2 a 5 güevos.

Suel esperar nuna posición abierta nuna caña o parrotal d'un árbol y llánzase p'atrapar inseutos en vuelu. Tamién recueye los inseutos de la xamasca.

Vocalización

El so cantar inclúi notes representáu como "pseet", "ptsick" y "seet", xeneralmente cantáu xuntu rápido. El "ptsick" o la nota "ptik" tien la primera sílaba más afinada que la segunda, y eso ye la única diferencia col cantar del mosqueru cordillerano. La llamada d'un machu ye fuerte y distintiva "pit pete" o "tse-seet", pero dalgunos dan un "aumentu tsweep" o un “tseeweep”, al igual que les llamaes del mosqueru del Pacíficu.

Referencies

  1. 1,0 1,1 BirdLife International. «Empidonax occidentalis» (inglés). Llista Roxa d'especies amenazaes de la UICN 2012.2.

Enllaces esternos

Protonotaria-citrea-002 edit.jpg Esta páxina forma parte del wikiproyeutu Aves, un esfuerciu collaborativu col fin d'ameyorar y organizar tolos conteníos rellacionaos con esti tema. Visita la páxina d'alderique del proyeutu pa collaborar y facer entrugues o suxerencies.
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Empidonax occidentalis: Brief Summary ( Asturian )

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Empidonax occidentalis Map marker icon – Nicolas Mollet – Birds – Nature – white.png Les especies d'aves con nome común en llingua asturiana márquense como NOA. En casu contrariu, conséñase'l nome científicu o de la SEO.

Empidonax occidentalis, ye una especie d'ave paseriforme de la familia Tyrannidae. Ye un ave pequeña con un tamañu de 13 a 17 cm, propiu de Canadá, Estaos Xuníos y Méxicu, que s'alimenta d'inseutos.

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Gwybedog y cordillera ( Welsh )

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Aderyn a rhywogaeth o adar yw Gwybedog y cordillera (sy'n enw gwrywaidd; enw lluosog: gwybedogion y cordillera) a adnabyddir hefyd gyda'i enw gwyddonol Empidonax occidentalis; yr enw Saesneg arno yw Cordilleran flycatcher. Mae'n perthyn i deulu'r Teyrn-wybedogion (Lladin: Tyrannidae) sydd yn urdd y Passeriformes.[1]

Talfyrir yr enw Lladin yn aml yn E. occidentalis, sef enw'r rhywogaeth.[2] Mae'r rhywogaeth hon i'w chanfod yng Ngogledd America.

Teulu

Mae'r gwybedog y cordillera yn perthyn i deulu'r Teyrn-wybedogion (Lladin: Tyrannidae). Dyma rai o aelodau eraill y teulu:

Rhestr Wicidata:

rhywogaeth enw tacson delwedd Gwybedog bron wyrdd Myiophobus cryptoxanthus Gwybedog bronfrith America Myiophobus fasciatus Gwybedog crib oren Myiophobus phoenicomitra
Myiophobus phoenicomitra.jpg
Gwybedog melyn y De Myiophobus flavicans
MyiobiusFlavicansSmit.jpg
Gwybedog plaen Myiophobus inornatus Gwybedog Roraima Myiophobus roraimae
Myiophobus roraimae.jpg
Titw-deyrn bronllwyd Anairetes alpinus Titw-deyrn copog Anairetes parulus
Tufted Tit-Tyrant.jpg
Titw-deyrn cribfrith Anairetes reguloides
Anairetes reguloides 1847.jpg
Titw-deyrn Juan Fernandez Anairetes fernandezianus
AnaeretesOxyurusSmit.jpg
Titw-deyrn pigfelyn Anairetes flavirostris
Yellow-billed Tit-Tyrant (Anairetes flavirostris) (15774898707).jpg
Diwedd y rhestr a gynhyrchwyd yn otomatig o Wicidata.

Gweler hefyd

Cyfeiriadau

  1. Gwefan Cymdeithas Edward Llwyd; adalwyd 30 Medi 2016.
  2. Gwefan Avibase; adalwyd 3 Hydref 2016.
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Gwybedog y cordillera: Brief Summary ( Welsh )

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Aderyn a rhywogaeth o adar yw Gwybedog y cordillera (sy'n enw gwrywaidd; enw lluosog: gwybedogion y cordillera) a adnabyddir hefyd gyda'i enw gwyddonol Empidonax occidentalis; yr enw Saesneg arno yw Cordilleran flycatcher. Mae'n perthyn i deulu'r Teyrn-wybedogion (Lladin: Tyrannidae) sydd yn urdd y Passeriformes.

Talfyrir yr enw Lladin yn aml yn E. occidentalis, sef enw'r rhywogaeth. Mae'r rhywogaeth hon i'w chanfod yng Ngogledd America.

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Cordilleran flycatcher

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The Cordilleran flycatcher (Empidonax occidentalis) is a small insect-eating bird. It is a small Empidonax flycatcher, with typical length ranging from 13 to 17 cm.

Adults have olive-gray upperparts, darker on the wings and tail, with yellowish underparts; they have a conspicuous teardrop-shaped white eye ring, white wing bars, a small bill and a short tail. Many species of this genus look closely alike. The best ways to distinguish species are by voice, by breeding habitat, and by range. This bird is virtually identical to the Pacific-slope flycatcher. These two species were formerly considered a single species known as western flycatcher. The species were split by the American Ornithologists’ Union in 1989.[2] The Pacific-slope flycatcher is a breeding bird of the Pacific Coast forests and mountain ranges from California to Alaska; the Cordilleran is a breeding bird of the Rocky Mountains. They have different songs and calls.

Cordilleran flycatchers' preferred breeding habitat is pine-oak or coniferous forest, usually near running water. They make a cup nest on a fork in a tree, usually low in a horizontal branch. Females usually lay two to five eggs.

These birds migrate to Mexico for the winter, where the Mexican central-southern birds are resident. The non-resident birds are on the western coast from Jalisco northwards, and then to inland regions, in a corridor strip on the western flank of the Sierra Madre Occidental.

The Cordilleran flycatcher waits on an open perch of a shrub or low branch of a tree and flies out to catch insects in flight (hawking), and also sometimes picks insects from foliage while hovering (gleaning).

The song includes notes represented as pseet, ptsick, seet usually sung rapidly together. The ptsick or ptik note has the first syllable higher-pitched than the second—the only difference from the Pacific-slope flycatcher's song (Sibley 2000). The male's typical position call is a loud and distinctive pit pete or tse-seet, but some give a "rising tsweep" or a "slurred tseeweep, like the calls of Pacific-slope flycatchers (Sibley 2000).

A position note from a Cordilleran flycatcher in the Black Hills of South Dakota

Problems playing this file? See media help.

References

  1. ^ BirdLife International (2019). "Empidonax occidentalis". IUCN Red List of Threatened Species. 2019: e.T22699874A137992524. doi:10.2305/IUCN.UK.2019-3.RLTS.T22699874A137992524.en. Retrieved 13 November 2021.
  2. ^ Pieplow, Nathan. "The "Western" Flycatcher Problem". Earbirding. Retrieved 2019-03-14.
Wikimedia Commons has media related to Empidonax occidentalis.

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Cordilleran flycatcher: Brief Summary

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The Cordilleran flycatcher (Empidonax occidentalis) is a small insect-eating bird. It is a small Empidonax flycatcher, with typical length ranging from 13 to 17 cm.

Adults have olive-gray upperparts, darker on the wings and tail, with yellowish underparts; they have a conspicuous teardrop-shaped white eye ring, white wing bars, a small bill and a short tail. Many species of this genus look closely alike. The best ways to distinguish species are by voice, by breeding habitat, and by range. This bird is virtually identical to the Pacific-slope flycatcher. These two species were formerly considered a single species known as western flycatcher. The species were split by the American Ornithologists’ Union in 1989. The Pacific-slope flycatcher is a breeding bird of the Pacific Coast forests and mountain ranges from California to Alaska; the Cordilleran is a breeding bird of the Rocky Mountains. They have different songs and calls.

Cordilleran flycatchers' preferred breeding habitat is pine-oak or coniferous forest, usually near running water. They make a cup nest on a fork in a tree, usually low in a horizontal branch. Females usually lay two to five eggs.

These birds migrate to Mexico for the winter, where the Mexican central-southern birds are resident. The non-resident birds are on the western coast from Jalisco northwards, and then to inland regions, in a corridor strip on the western flank of the Sierra Madre Occidental.

The Cordilleran flycatcher waits on an open perch of a shrub or low branch of a tree and flies out to catch insects in flight (hawking), and also sometimes picks insects from foliage while hovering (gleaning).

The song includes notes represented as pseet, ptsick, seet usually sung rapidly together. The ptsick or ptik note has the first syllable higher-pitched than the second—the only difference from the Pacific-slope flycatcher's song (Sibley 2000). The male's typical position call is a loud and distinctive pit pete or tse-seet, but some give a "rising tsweep" or a "slurred tseeweep, like the calls of Pacific-slope flycatchers (Sibley 2000).

Position note of Cordilleran flycatcher A position note from a Cordilleran flycatcher in the Black Hills of South Dakota Problems playing this file? See media help.
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Empidonax occidentalis ( Spanish; Castilian )

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El mosquero cordillerano, (Empidonax occidentalis), es una especie de ave paseriforme de la familia Tyrannidae. Es un ave pequeña con un tamaño de 13 a 17 cm, propio de Canadá, Estados Unidos y México,[1]​ que se alimenta de insectos.

Descripción

Las aves adultas tienen dorso oliva gris, más oscuro en las alas y la cola, con el vientre amarillento; tienen un anillo de ojo blanco visible en forma de lágrima, barras de ala blanca, y una cola corta. Muchas especies de este género tienen el aspecto similar. La mejor manera de distinguirlas es por sus vocalizaciones y por su hábitat de cría. La apariencia del mosquero cordillerano es prácticamente idéntica a la del mosquero del Pacífico. Estas dos especies fueron anteriormente consideradas como una sola especie conocida como mosquero occidental. El mosquero del Pacífico se reproduce en los bosques de la costa del Pacífico desde California hasta Alaska, el mosquero cordillerano anida en las Montañas Rocosas. Se diferencian también por sus cantos y llamadas.

Distribución y hábitat

Las poblaciones que anidan en Canadá y Estados Unidos, invernan en México, donde las aves centrales sur mexicanas son residentes. Las aves migratorias están en la costa occidental de Jalisco hacia el norte, y luego a las regiones del interior, en un corredor en el flanco occidental de la Sierra Madre Occidental. Su hábitat de reproducción preferido es el bosque de pino o bosque de coníferas, por lo general cerca de una corriente de agua corriente.

Comportamiento

Construyen el nido entre las ramas de un árbol, por lo general en una rama horizontal en la parte baja. Las hembras ponen de 2 a 5 huevos.

Suele esperar en una posición abierta en una rama o arbusto de un árbol y se lanza para atrapar insectos en vuelo. También recoge los insectos del follaje.

Vocalización

Su canto incluye notas representado como "pseet", "ptsick" y "seet", generalmente cantado junto rápidamente. El "ptsick" o la nota "ptik" tiene la primera sílaba más afinada que la segunda, y eso es la única diferencia con la canción del mosquero cordillerano. La llamada de un macho es fuerte y distintiva "pit pete" o "tse-seet", pero algunos dan un "aumento tsweep" o un “tseeweep”, al igual que las llamadas del mosquero del Pacífico.

Referencias

  1. a b BirdLife International (2012). «Empidonax occidentalis». Lista Roja de especies amenazadas de la UICN 2012.2 (en inglés). ISSN 2307-8235. Consultado el 13 de febrero de 2013.

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Empidonax occidentalis: Brief Summary ( Spanish; Castilian )

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El mosquero cordillerano, (Empidonax occidentalis), es una especie de ave paseriforme de la familia Tyrannidae. Es un ave pequeña con un tamaño de 13 a 17 cm, propio de Canadá, Estados Unidos y México,​ que se alimenta de insectos.

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Empidonax occidentalis ( Basque )

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Empidonax occidentalis Empidonax generoko animalia da. Hegaztien barruko Tyrannidae familian sailkatua dago.

Erreferentziak

  1. (Ingelesez)BirdLife International (2012) Species factsheet. www.birdlife.org webgunetitik jaitsia 2012/05/07an
  2. (Ingelesez) IOC Master List

Ikus, gainera

(RLQ=window.RLQ||[]).push(function(){mw.log.warn("Gadget "ErrefAurrebista" was not loaded. Please migrate it to use ResourceLoader. See u003Chttps://eu.wikipedia.org/wiki/Berezi:Gadgetaku003E.");});
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Empidonax occidentalis: Brief Summary ( Basque )

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Empidonax occidentalis Empidonax generoko animalia da. Hegaztien barruko Tyrannidae familian sailkatua dago.

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Moucherolle des ravins ( French )

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Empidonax occidentalis

Le Moucherolle des ravins (Empidonax occidentalis), appelé également Moucherolle à ventre neigeux[1], est une espèce de petits oiseaux insectivores de la famille des Tyrannidae, d'une longueur typique variant entre 13 et 17 cm. Les espèces du genre Empidonax sont difficiles à différencier, et ne peuvent être reconnues que grâce à leur cris, leur habitat et leur aire de répartition.

Description

Les adultes ont les parties supérieures gris olive, plus foncées sur les ailes et la queue, avec des parties inférieures jaunâtres. L'œil est entouré d'un anneau en forme de larme blanche. Les barres alaires sont blanches. Le bec et la queue sont courts. Le Moucherolle des ravins est pratiquement identique au Moucherolle côtier. Ces deux espèces étaient autrefois considérés comme une seule espèce[2].

Reproduction

Il se reproduit de préférence dans les forêts de pins ou de chênes, généralement près de l'eau courante. Le nid creux est installé dans une fourche d'arbre, en général assez bas sur une branche horizontale. Les femelles pondent de 2 à 5 œufs.

Alimentation

Le Moucherolle des ravins se poste sur un perchoir dans un arbuste ou sur les branches basses d'un arbre pour attraper des insectes en vol, et les glane aussi parfois sur le feuillage.

Chant

Le chant comporte des psiit, ptsik, siit, en succession rapide. La première syllabe ptsik ou ptik est plus aiguë que la seconde ; c'est la seule différence avec le chant du Moucherolle côtier[3]. L'appel de position distinctif du mâle est un fort et distinct pit piiit, ou tsi-siit, même si parfois on peut entendre un tswiii montant, ou à peine discerner un tsiiwiip, comme les appels du Moucherolle côtier[3].

Sous-espèces

Cette espèce est représentée par 2 sous-espèces :

Notes et références

  1. a et b (fr+en) Référence Avibase : Empidonax occidentalis (+ répartition)
  2. Moucherolle des ravins, sur le site d'Environnement Canada.
  3. a et b (en) David Allen Sibley, The Sibley Guide to Birds, Alfred Knopf, 2000 (ISBN 0-679-45122-6), page 324
  4. (fr+en) Référence ITIS : Empidonax occidentalis Nelson, 1897

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Moucherolle des ravins: Brief Summary ( French )

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Empidonax occidentalis

Le Moucherolle des ravins (Empidonax occidentalis), appelé également Moucherolle à ventre neigeux, est une espèce de petits oiseaux insectivores de la famille des Tyrannidae, d'une longueur typique variant entre 13 et 17 cm. Les espèces du genre Empidonax sont difficiles à différencier, et ne peuvent être reconnues que grâce à leur cris, leur habitat et leur aire de répartition.

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Hooglandfeetiran ( Dutch; Flemish )

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Vogels

De hooglandfeetiran (Empidonax occidentalis) is een zangvogel uit de familie Tyrannidae (tirannen).

Verspreiding en leefgebied

Deze soort telt 2 ondersoorten:

  • Empidonax occidentalis hellmayri: van ZW-Canada tot N-Mexico.
  • Empidonax occidentalis occidentalis: C- en Z-Mexico.

Externe link

Bronnen, noten en/of referenties
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Hooglandfeetiran: Brief Summary ( Dutch; Flemish )

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De hooglandfeetiran (Empidonax occidentalis) is een zangvogel uit de familie Tyrannidae (tirannen).

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Ponderosaempid ( Swedish )

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Ponderosaempid[2] (Empidonax occidentalis) är en fågel i familjen tyranner inom ordningen tättingar.[3]

Utbredning och systematik

Ponderosaempid delas in i två underarter med följande utbredning:[3]

  • Empidonax occidentalis hellmayri – förekommer i skogar från sydvästra Kanada till norra Mexiko, övervintrar i södra Mexiko
  • Empidonax occidentalis occidentalis – förekommer i högländerna i Mexiko

Status och hot

Arten har ett stort utbredningsområde och en stor population, men tros minska i antal, dock inte tillräckligt kraftigt för att den ska betraktas som hotad.[1] Internationella naturvårdsunionen IUCN kategoriserar därför arten som livskraftig (LC).[1]

Namn

Ponderosa är en tallart, även kallad gultall, som förekommer i västra Nordamerika och som fågeln frekventerar.

Referenser

  1. ^ [a b c] Birdlife International 2016 Empidonax occidentalis Från: IUCN 2016. IUCN Red List of Threatened Species. Version 2016.3 www.iucnredlist.org. Läst 2016-12-11.
  2. ^ Sveriges ornitologiska förening (2017) Officiella listan över svenska namn på världens fågelarter, läst 2017-02-14
  3. ^ [a b] Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood (2016) The eBird/Clements checklist of birds of the world: Version 2016 http://www.birds.cornell.edu/clementschecklist/download, läst 2016-08-11

Externa länkar

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Ponderosaempid: Brief Summary ( Swedish )

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Ponderosaempid (Empidonax occidentalis) är en fågel i familjen tyranner inom ordningen tättingar.

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Empidonax occidentalis ( Vietnamese )

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Empidonax occidentalis là một loài chim trong họ Tyrannidae.[2]

Chú thích

  1. ^ BirdLife International (2012). Empidonax occidentalis. Sách Đỏ IUCN các loài bị đe dọa. Phiên bản 2013.2. Liên minh Bảo tồn Thiên nhiên Quốc tế. Truy cập ngày 26 tháng 11 năm 2013.
  2. ^ Clements, J. F., T. S. Schulenberg, M. J. Iliff, B.L. Sullivan, C. L. Wood, and D. Roberson (2012). “The eBird/Clements checklist of birds of the world: Version 6.7.”. Truy cập ngày 19 tháng 12 năm 2012.

Tham khảo


Hình tượng sơ khai Bài viết liên quan đến họ chim Đớp ruồi bạo chúa này vẫn còn sơ khai. Bạn có thể giúp Wikipedia bằng cách mở rộng nội dung để bài được hoàn chỉnh hơn.
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Empidonax occidentalis: Brief Summary ( Vietnamese )

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Empidonax occidentalis là một loài chim trong họ Tyrannidae.

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