Currently there have been no observations of adult or nest predation, though it is known to occur. Certain bird species are heavily mobbed by Vireo gilvus and are presumed to be predators. These species include Steller’s jays, western scrub-jays, blue jays and common grackles. Western mammalian predators include red squirrels and western gray squirrels. Their dull, olive-gray coloration likely serves as camouflage in the tree canopy.
Known Predators:
Anti-predator Adaptations: cryptic
Like all birds, Vireo gilvus perceives its environment through visual, auditory, chemical and tactile stimuli. Vocal communications include male territorial song, courtship call, and a variety of contact, begging, and warning calls. The typical song is mnemonically described as "If I see you, I will seize you, and I'll squeeze you 'til you squirt!". Compared to other vireos, this call is undulating and more connected with an overall warbling quality. Calls are used between mates to locate each other, as well as warn of nearby predators. Pairs also use body postures to communicate during courtship. Male courtship begins with an aerial chase of the female which is followed by a stationary interaction where the male fans his tail and turns his body back and forth. The female responds with wing-quivering and will eventually peck at the male's beak when he approaches.
Communication Channels: visual ; tactile ; acoustic
Perception Channels: visual ; tactile ; acoustic ; chemical
Vireo gilvus is of least concern to the IUCN Red List as it has a large population size dispersed across a wide geographic range. As migratory birds, they are protected under the United States Migratory Bird Act. This species prefers forested habitats with significant portions of canopy openings and may thrive as a result of careful selective harvesting by the logging industry. There is a minor concern with regards to the effect of brown-headed cowbird brood parasitism. Warbling vireos have not yet evolved a method to identify, remove or destroy cowbird eggs which results in low productivity and may cause future population declines. Another concern is pesticide application, as warbling vireo populations may become locally extinct after foraging and nesting trees are sprayed.
US Migratory Bird Act: protected
US Federal List: no special status
CITES: no special status
State of Michigan List: no special status
IUCN Red List of Threatened Species: least concern
There are no known adverse effects of warbling vireos on humans.
Vireo gilvus is primarily an insectivore, which may serve to reduce pest populations.
Vireo gilvus is primarily an insectivore that likely impacts local prey populations. They are common hosts of brood parasitic brown-headed cowbirds and have not evolved any method to remove or destroy the foreign eggs. During fall and winter, these birds include berries in their diets, and may serve a small role as a local seed disperser. One individual has been reported to have have been captured with feather mites of the genus Proctophyllodes.
Commensal/Parasitic Species:
Vireo gilvus is primarily an insectivore but will also consume spiders and berries in the fall and winter. They utilize a hover and glean feeding strategy, and capture nearly all of their food from peripheral leaves of trees or shrubs. Prey items include caterpillars and pupae of butterflies and moths (Lepidoptera), true bugs (Hemiptera), ladybug beetles (Coccinellidae), beetles (Coleoptera), as well as spiders (Arachnida). Non-insect items consumed include elderberries and poison oak berries.
Animal Foods: insects; terrestrial non-insect arthropods
Plant Foods: fruit
Primary Diet: carnivore (Insectivore )
Vireo gilvus, or warbling vireos, inhabit the Nearctic and Neotropical regions. This species breeds across nearly the entire United States, excluding the southeast region. The breeding range reaches north to include the southwest Canadian provinces of British Columbia, Alberta, Saskatchewan, and the southwest corner of Manitoba. They also breed in the southern portions of the Northwest Territories, Ontario, Quebec, and New Brunswick. Few populations breed in Mexico but are restricted to the Sierre Madre Occidental region. Vireo gilvus is a migratory species that overwinters in Central America from Mexico to the northern edges of Nicaragua.
Biogeographic Regions: nearctic (Native ); neotropical (Native )
Vireo gilvus prefers to breed in deciduous or mixed deciduous-coniferous woodlands with adequate canopy openings. Forested riversides and thickets are also potential nesting habitats. They occasionally inhabit young successional stands. They may also be found in urban parks, gardens, orchards or hedgerows. During the non-breeding season Vireo gilvus inhabits a wider range of habitats including second growth forests, plantations, oak forests, and coniferous forests. They are common in shade-grown coffee plantations which retain native canopy trees and shrubs. During migration, common stopover sites include deciduous forest, shrubby habitats, and scrub forests in the southwest. Throughout all seasons, Vireo gilvus avoids boreal or pine dominated habitats. They inhabit elevations of up to 3,000 m.
Range elevation: 3,000 (high) m.
Habitat Regions: temperate ; tropical ; terrestrial
Terrestrial Biomes: forest ; scrub forest
Other Habitat Features: urban ; agricultural ; riparian
The longest-lived Vireo gilvus individual was an adult banded in California and recaptured 13 years later. Adult annual survivorship estimates range from 50 to 83%. Exact causes of mortality are unknown but may include brood parasitism by brown-headed cowbirds, nest depredation, or decline in habitat quality.
Range lifespan
Status: wild: 13 (high) years.
Vireo gilvus is a smaller vireo, measuring 14 cm in length, 21.6 cm from wingtip to wingtip and weighing in at 12 g. They are overall olive-gray above, with a gray crown that contrasts only slightly with their olive-gray backs. Like many vireos they feature a white supercilium and gray eyestripe. The eyestripe and lores for this species are a pale gray which gives them a "blank-faced" look that distinguishes them from other, more boldly patterned vireos. The flanks and sides are a pale yellow, while the throat, breast and belly are nearly white. Beaks and legs are dark gray to black in color. This species exhibits no sexual dimorphism or distinctive juvenile plumage.
Average mass: 12.0 g.
Average length: 14.0 cm.
Average wingspan: 21.6 cm.
Other Physical Features: endothermic ; homoiothermic; bilateral symmetry
Sexual Dimorphism: sexes alike
Vireo gilvus is a monogamous species, but it is unknown if there is mate or site fidelity. Pair formation likely occurs during migration, as most pairs have already formed by the time they arrive on the breeding grounds. Courtship displays generally begin with males engaging females in a chase flight. Afterward, the male may give courtship calls while fanning his tail and moving his body from side to side, facing the female. Females respond with wing-quivering, and when the male approaches she will strike her bill against his. Some mate feeding has been observed during migration as well. Once pairs have formed, the two individuals will both sing courtship calls while constructing the nest together. No reports of mate defense currently exist.
Mating System: monogamous
In migratory populations, most warbling vireos arrive on the breeding grounds from mid-April to Mid-May and most have already formed pairs. Nest construction begins 2 to 7 days after arrival or pair formation on the breeding grounds. Nests are built by both males and females (though more-so by females) and are typically located high in the canopy, but height can range from 1 to 37 m. Like most vireos, they form a deep, hanging cup secured in a forked branch. Construction lasts 6 to 7 days and pairs incorporate leaves, grass, bark strips, pine needles, feathers or hair into the nest. Females lay an average clutch size of 4, white eggs which are spotted with brown or black. Eggs measure 19 mm in length. Incubation lasts 12 days on average, and the young fledge after 13 to 14 days. Parents continue to feed their fledglings for at least 2 weeks post-fledge, but exact independence date is unknown. Age at reproductive maturity is unknown but is presumed to be approximately 10 months or during an individual's first spring. In locations with long breeding seasons, two broods have been reported.
Breeding interval: Warbling vireos typically breed once yearly, but may produce two broods in locations with long breeding seasons.
Breeding season: Warbling vireos breed from mid-April through early August.
Range eggs per season: 3 to 5.
Average time to hatching: 12 days.
Range fledging age: 13 to 14 days.
Range time to independence: 14 (low) days.
Average age at sexual or reproductive maturity (female): 10 months.
Average age at sexual or reproductive maturity (male): 10 months.
Key Reproductive Features: iteroparous ; seasonal breeding ; gonochoric/gonochoristic/dioecious (sexes separate); sexual ; oviparous
Vireo gilvus females select a suitable nesting site and perform most of the nest construction. Once the nest is completed and eggs have been laid, both males and females take turns incubating the clutch though females perform most of the incubation as well. After hatching, the altricial young require constant feeding and brooding provided by both parents, although females more-so than males. Parents take turns watching over the nestlings and foraging for food, making sure that one parent is tending the brood at all times. Both parents remove fecal sacs from the nest, which likely reduces risk of disease or predation. Once the hatchlings fledge, both parents continue to feed and care for the young for an additional two weeks.
Parental Investment: altricial ; male parental care ; female parental care ; pre-fertilization (Provisioning, Protecting: Male, Female); pre-hatching/birth (Provisioning: Male, Female, Protecting: Male, Female); pre-weaning/fledging (Provisioning: Male, Female, Protecting: Male, Female); pre-independence (Provisioning: Male, Female, Protecting: Male, Female)
A medium-sized (5 inches) vireo, the Warbling Vireo is most easily identified by its plain brown-gray upperparts and wings, pale breast, and faint white eye-stripes. This species may be separated from the Red-eyed Vireo (Vireo olivaceus), which also has a pale breast and plain back, by that species’ brighter eye-stripes. Male and female Warbling Vireos are similar to one another in all seasons. The Warbling Vireo breeds across the northern United States and southern Canada. In the west, this species’ range extends southward at higher elevations as far as central Mexico. Warbling Vireos breeding in the U.S. and Canada spend the winter from central Mexico south to northern Central America, while populations breeding in central Mexico migrate short distances, if at all. Warbling Vireos breed in a variety of deciduous or mixed deciduous and evergreen woodland habitats. During the winter, this species may be found in a variety of semi-open habitats around tropical forests. Warbling Vireos primarily eat small insects, but also eat small quantities of fruits and berries during the winter. In appropriate habitat, Warbling Vireos may be seen foraging for food on leaves and branches in the tree canopy. Birdwatchers may also listen for this species’ song, a series of fluty notes more reminiscent of a warbler than a vireo. Warbling Vireos are primarily active during the day, but, like many migratory songbirds, this species migrates at night.
A medium-sized (5 inches) vireo, the Warbling Vireo is most easily identified by its plain brown-gray upperparts and wings, pale breast, and faint white eye-stripes. This species may be separated from the Red-eyed Vireo (Vireo olivaceus), which also has a pale breast and plain back, by that species’ brighter eye-stripes. Male and female Warbling Vireos are similar to one another in all seasons. The Warbling Vireo breeds across the northern United States and southern Canada. In the west, this species’ range extends southward at higher elevations as far as central Mexico. Warbling Vireos breeding in the U.S. and Canada spend the winter from central Mexico south to northern Central America, while populations breeding in central Mexico migrate short distances, if at all. Warbling Vireos breed in a variety of deciduous or mixed deciduous and evergreen woodland habitats. During the winter, this species may be found in a variety of semi-open habitats around tropical forests. Warbling Vireos primarily eat small insects, but also eat small quantities of fruits and berries during the winter. In appropriate habitat, Warbling Vireos may be seen foraging for food on leaves and branches in the tree canopy. Birdwatchers may also listen for this species’ song, a series of fluty notes more reminiscent of a warbler than a vireo. Warbling Vireos are primarily active during the day, but, like many migratory songbirds, this species migrates at night.
Distribucion General: Se reproduce desde el sur de Alaska y en el norte de Canadá hasta la parte central de México. Invierna desde el norte de México hasta Nicaragua, y en forma casual llega hasta Costa Rica.
Les especies d'aves con nome común en llingua asturiana márquense como NOA. En casu contrariu, conséñase'l nome científicu o de la SEO.
Vireo gilvus ye una especie d'ave paseriforme, perteneciente a la familia Vireonidae, del xéneru Vireo.[2] Distribúise per gran parte de Norteamérica y América Central incluyendo Canadá, Islles Caimán, Costa Rica, Cuba, El Salvador, Guatemala, Hondures, Xamaica, Méxicu, Nicaragua y Estaos Xuníos.[1] El so hábitat consiste de monte y güelgues.[1]
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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. Les especies d'aves con nome común en llingua asturiana márquense como NOA. En casu contrariu, conséñase'l nome científicu o de la SEO. Vireo gilvus ye una especie d'ave paseriforme, perteneciente a la familia Vireonidae, del xéneru Vireo. Distribúise per gran parte de Norteamérica y América Central incluyendo Canadá, Islles Caimán, Costa Rica, Cuba, El Salvador, Guatemala, Hondures, Xamaica, Méxicu, Nicaragua y Estaos Xuníos. El so hábitat consiste de monte y güelgues.
El viri melodiós[1] (Vireo gilvus) és un ocell de la família dels vireònids (Vireonidae) que habita boscos, matolls i medi urbà, des del sud-oest d'Alberta, Saskatchewan i sud de Manitoba, cap al sud, pel sud de Canadà, la major part dels Estats Units i les muntanyes occidentals de Mèxic. Viatgen cap al sud per a passar l'hivern a Mèxic i Amèrica Central.
El viri melodiós (Vireo gilvus) és un ocell de la família dels vireònids (Vireonidae) que habita boscos, matolls i medi urbà, des del sud-oest d'Alberta, Saskatchewan i sud de Manitoba, cap al sud, pel sud de Canadà, la major part dels Estats Units i les muntanyes occidentals de Mèxic. Viatgen cap al sud per a passar l'hivern a Mèxic i Amèrica Central.
Aderyn a rhywogaeth o adar yw Fireo trydarol (sy'n enw gwrywaidd; enw lluosog: fireod trydarol) a adnabyddir hefyd gyda'i enw gwyddonol Vireo gilvus; yr enw Saesneg arno yw Warbling vireo. Mae'n perthyn i deulu'r Fireod (Lladin: Vireonidae) sydd yn urdd y Passeriformes.[1]
Talfyrir yr enw Lladin yn aml yn V. gilvus, sef enw'r rhywogaeth.[2] Mae'r rhywogaeth hon i'w chanfod yng Ngogledd America.
Mae'r fireo trydarol yn perthyn i deulu'r Fireod (Lladin: Vireonidae). Dyma rai o aelodau eraill y teulu:
Rhestr Wicidata:
rhywogaeth enw tacson delwedd Fireo bronfelyn y De Hylophilus thoracicus Fireo bronfelynllwyd Hylophilus muscicapinus
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Aderyn a rhywogaeth o adar yw Fireo trydarol (sy'n enw gwrywaidd; enw lluosog: fireod trydarol) a adnabyddir hefyd gyda'i enw gwyddonol Vireo gilvus; yr enw Saesneg arno yw Warbling vireo. Mae'n perthyn i deulu'r Fireod (Lladin: Vireonidae) sydd yn urdd y Passeriformes.
Talfyrir yr enw Lladin yn aml yn V. gilvus, sef enw'r rhywogaeth. Mae'r rhywogaeth hon i'w chanfod yng Ngogledd America.
Der Sängervireo (Vireo gilvus) ist ein nordamerikanischer Singvogel.
Der 12 cm lange und 12 g schwere Sängervireo ist ein Vogel mit grauem Rücken, gelbbraunem Bauch, weißem Überaugenstreif und blassgelben Flanken. Er hat dicke blau-graue Beine und einen kräftigen Schnabel. Mit seinem melodischen Gesang mit langen, schwingenden Strophen unterscheidet er sich von den kurzen Rufen anderer Vireo-Arten.
Dieser Vogel brütet in offenen Laubwäldern, oft in der Nähe von Flüssen, von Südkanada bis Mexiko und überwintert im tropischen Regenwald in Zentralamerika südlich bis Nicaragua.
Der Sängervireo sucht in den mittleren Baumschichten nach Insekten und Spinnen, die er von der Borke und von den Blättern pickt. Daneben gehören, besonders vor dem Vogelzug, auch Beeren zur Nahrung.
In einem korbartigen Nest, das in einer Astgabel hoch oben in einem Baum hängt, werden drei bis vier Eier gelegt und von beiden Elternvögeln zwölf Tage lang ausgebrütet. Die Jungvögel verlassen im Alter von 16 Tagen das Nest. Der Sängervireo wird manchmal Opfer des brutschmarotzenden Braunkopf-Kuhstärlings.
The warbling vireo (Vireo gilvus) is a small North American songbird.
Its breeding habitat is open deciduous and mixed woods from Alaska to Mexico and the Florida Panhandle. It often nests in widely spaced trees, often cottonwood or aspen, along streams or rivers. It migrates to Mexico and Central America.
Measurements:[2]
They are mainly olive-grey on the head and upperparts with white underparts; they have brown eyes and the front of the face is light. There is a white supercilium. They have thick blue-grey legs and a stout bill. Western birds are generally smaller and have darker grey crowns.
Warbling vireos forage for insects in trees, hopping along branches and sometimes hovering. They also eat berries, especially before migration and in winter quarters, where they are – like other vireos – apparently quite fond of gumbo-limbo seeds, though they will not venture into human-modified habitat to get them.[3] They make a deep cup nest suspended from a tree branch or shrub, placed relatively high in the east and lower in the west. The male helps with incubation and may sing from the nest.
The warbling vireo's song is a cheerful warble, similar to that of the painted bunting and the purple finch. There are subtle differences in song between eastern and western birds, at least where the ranges meet in Alberta. Some authorities split the eastern and western races of this species into separate species: The western warbling vireo, V. swainsoni, includes V. g. swainsoni, which breeds from southeastern Alaska and southwestern Northwest Territories to the Sierra San Pedro Mártir, Baja California, and V. g. brewsteri, which breeds from southern Idaho, Wyoming, and Montana to south-central Oaxaca. These two subspecies winter in Mexico. The swainsoni group also includes V. g. victoriae, an isolated population breeding in the Sierra de la Laguna, Baja California Sur, and migrating to unknown wintering grounds.[4]
The eastern warbling vireo, V. gilvus, breeds from central Alberta and northern Montana east and south through most of the United States and parts of southern Canada, outside the range of the previous group. It winters south of the Isthmus of Tehuantepec from south-central Chiapas to Nicaragua. It completes its autumn molt on the breeding grounds, while the swainsonii group completes it after leaving.[4]
The brown-capped vireo (Vireo leucophrys), resident in Central America and northern South America, is sometimes considered conspecific with the warbling vireo.
Vireo singing Ruby Mountains, Nevada
On nest, Ruby Mountains, Nevada
Perched, Illinois
Song Song of V. gilvus gilvus at Grey Cloud Dunes SNA, Washington, MN, USA Problems playing this file? See media help. The warbling vireo (Vireo gilvus) is a small North American songbird.
Its breeding habitat is open deciduous and mixed woods from Alaska to Mexico and the Florida Panhandle. It often nests in widely spaced trees, often cottonwood or aspen, along streams or rivers. It migrates to Mexico and Central America.
Measurements:
Length: 4.7-5.1 in (12-13 cm) Weight: 0.3-0.6 oz (10-16 g) Wingspan: 8.7 in (22 cm)They are mainly olive-grey on the head and upperparts with white underparts; they have brown eyes and the front of the face is light. There is a white supercilium. They have thick blue-grey legs and a stout bill. Western birds are generally smaller and have darker grey crowns.
Warbling vireos forage for insects in trees, hopping along branches and sometimes hovering. They also eat berries, especially before migration and in winter quarters, where they are – like other vireos – apparently quite fond of gumbo-limbo seeds, though they will not venture into human-modified habitat to get them. They make a deep cup nest suspended from a tree branch or shrub, placed relatively high in the east and lower in the west. The male helps with incubation and may sing from the nest.
The warbling vireo's song is a cheerful warble, similar to that of the painted bunting and the purple finch. There are subtle differences in song between eastern and western birds, at least where the ranges meet in Alberta. Some authorities split the eastern and western races of this species into separate species: The western warbling vireo, V. swainsoni, includes V. g. swainsoni, which breeds from southeastern Alaska and southwestern Northwest Territories to the Sierra San Pedro Mártir, Baja California, and V. g. brewsteri, which breeds from southern Idaho, Wyoming, and Montana to south-central Oaxaca. These two subspecies winter in Mexico. The swainsoni group also includes V. g. victoriae, an isolated population breeding in the Sierra de la Laguna, Baja California Sur, and migrating to unknown wintering grounds.
The eastern warbling vireo, V. gilvus, breeds from central Alberta and northern Montana east and south through most of the United States and parts of southern Canada, outside the range of the previous group. It winters south of the Isthmus of Tehuantepec from south-central Chiapas to Nicaragua. It completes its autumn molt on the breeding grounds, while the swainsonii group completes it after leaving.
The brown-capped vireo (Vireo leucophrys), resident in Central America and northern South America, is sometimes considered conspecific with the warbling vireo.
Vireo singing Ruby Mountains, Nevada
On nest, Ruby Mountains, Nevada
Perched, Illinois
La Trilovireo, Vireo gilvus, estas specio de birdo de la familio de Vireedoj kaj genro de Vireoj, kiuj estas malgrandaj paserinoj de Ameriko, de koloroj olivverdecaj al sablokoloraj.
Ties reprodukta vivejo estas malfermaj deciduaj kaj miksitaj arbaroj el suda Alasko tra sudokcidenta Kanado kaj la tuta Usono (escepte la plej sudorienta pinto kun Florido) al orientaj montarĉenoj en Meksiko kaj Okcidenta Florido. Ĝi ofte nestumas laŭlonge de riveroj. Ĝi migras al suda Meksiko kaj Gvatemalo kaj Honduro en Centrameriko. En sudorienta Meksiko estas populacio de loĝantaj birdoj la tutan jaron. La vintrejoj estas kutime malfermaj arbaroj.
Plenkreskulo estas 12 cm longa kaj pezas 12 g. Ili estas ĉefe olivecgrizaj en kapo kaj supraj partoj kun blankaj subaj partoj kun iom da flaveca nuanco ĉeflanke; ili havas brunajn okulojn kaj la bridareo estas hela iom flaveca en komenco de frunto kontrasta kun pli malhelgriza komenco de ĝenerale griza krono. Estas blanka larĝa kaj markata superokula strio, grizeca traokula strio kaj hela marko subokula. Ili havas dikajn bluecgrizajn krurojn kaj fortikan bekon. Okcidentaj birdoj estas ĝenerale pli malgrandaj kaj havas pli malhelajn grizajn kronojn. Ĉiukaze temas pri senmarka birdo (nek flugilstrio nek okulringo) pli facile aŭdata ol vidata.
Ili manĝas insektojn ĉiun sezonon en arboj, saltetante inter branĉoj kaj foje flugetante. Ili manĝas ankaŭ fruktetojn aŭ berojn, ĉefe antaŭ migrado kaj en vintrejoj, kie ili estas – kiel aliaj vireoj – emaj je semoj de Simarubo, sed ili ne kuraĝas al hom-modifita vivareo por preni ilin[1]. Ankaŭ helikojn, araneojn kaj similajn malgrandajn bestetojn.
Ili faras profundan tasforman neston pendatan el arbobranĉo aŭ arbusto, situa relative alte oriente kaj pli malalte okcidente. La ino demetas 3 al 5 ovojn, plej ofte 4. Masklo helpas je kovado dum 12 aŭ 13 tagoj kaj povas kanti el la nesto. Elnestiĝo okazas post ĉirkaŭ 14 tagoj. Tiu specio suferas nestoparazitadon fare de la Bruna molotro.
La kanto estas agrabla rapida trilado (kio nomigas la specion) kun altataona lasta noto, simila al tiu de la Bunta paserino, tre ofte elsendata el altaj arbopintoj. Estas subtilaj diferencoj en kanto inter orientaj kaj okcidentaj birdoj, almenaŭ kie la teritorioj koincidas en Alberto. Kelkaj fakuloj disigas la orientan kaj okcidentan rasojn de tiu specio (ĉefe pro la kanto kaj kutimaro anstataŭ pro la simila aspekto) en du separatajn speciojn:
La Okcidenta trilovireo, V. swainsonii, kiu inkludus subspeciojn V. g. swainsonii, kiu reproduktiĝas el sudorienta Alasko kaj sudokcidento de Kanadaj Nordokcidentaj Teritorioj al Montaro de Sankta Petro Martiro, Kalifornia Duoninsulo, kaj V. g. brewsteri, kiu reproduktiĝas el suda Idaho, Wyoming, kaj Montano al sudcentra Oaĥako. Tiuj du subspecioj vintras en Meksiko. La grupo swainsonii inkludus ankaŭ V. g. victoriae, izolatan populacion kiu reproduktas en Laguna-Montaro, Suda Malsupra Kalifornio, kaj migras al nekonatajn vintrejojn.[2]
La Orienta trilovireo, V. gilvus, reproduktas el centra Alberto kaj norda Montano orienten kaj suden tra plej parto de Usono kaj partoj de suda Kanado, for de la teritorio de la antaŭe menciata grupo. Ili vintras sude de la Istmo de Tehuantepeko el sudcentra Ĉiapaso al Nikaragvo. Ĝi finas sian aŭtunan plumoŝanĝadon en la reproduktaj teritorioj, dum la grupo swainsonii finas ĝin post eliro.[2]
La Brunkrona vireo (Vireo leucophrys), loĝanta en Centrameriko kaj norda Sudameriko, estis foje konsiderata samspecifa kun la Trilovireo.
La Trilovireo, Vireo gilvus, estas specio de birdo de la familio de Vireedoj kaj genro de Vireoj, kiuj estas malgrandaj paserinoj de Ameriko, de koloroj olivverdecaj al sablokoloraj.
El vireo gorjeador[3] (en México) (Vireo gilvus), también denominado vireo canoro (en Costa Rica), vireo cantor (en Honduras), vireo grisáceo (en Nicaragua) o vireo chipe,[4] es una especie de ave paseriforme de la familia Vireonidae perteneciente al numeroso género Vireo. Anida en América del Norte y migra hacia México, América Central e islas del Caribe en los inviernos boreales.[2]
Anida en Alaska, Canadá y gran parte de Estados Unidos y partes de México y migra hacia este último y Centroamérica; se registra su presencia en Islas Caimán, Costa Rica, Cuba, El Salvador, Guatemala, Honduras, Jamaica y Nicaragua.[1]
Su hábitat preferencial reproductivo consiste de bosques templados y humedales, o terrenos cercanos a cursos permanentes de agua. Durante la invernada prefiere bosques húmedos montanos tropicales y subtropicales.[1]
La especie V. gilvus fue descrita por primera vez por el naturalista francés Louis Jean Pierre Vieillot en 1808 bajo el nombre científico Muscicapa gilva; localidad tipo «estado de New York, USA».[2]
Algunas veces ha sido colocada en un género propio, Melodivireo. Puede formar una superespecie con Vireo leucophrys, y a menudo son consideradas conespecíficas, pero las dos difieren en plumaje y algunas vocalizaciones. La subespecie nominal ha sido tratada como una especie única monotípica: vireo gorjeador oriental, mientras las otras cuatro subespecies agrupadas en el grupo swainsoni formarían una especie separada: Vireo swainsonii, el vireo gorjeador occidental; se alega un grado de aislamiento reproductivo de los dos taxones en una zona de sobreposición en el sur de Canadá (Alberta); son necesarios más estudios. Las subespecies propuestas leucopolius, descrita desde el oeste de Estados Unidos (montañas Warner, en el sureste de Oregon), considerada sinónimo de swainsoni; petrorus (desde Wyoming) y connectens (desde Chilpancingo, en Guerrero, en el suroeste de México) ambas resumidas en brewsteri.[2]
Según la clasificación del Congreso Ornitológico Internacional (IOC) (Versión 6.2, 2016)[5] y Clements Checklist v.2015,[6] se reconocen 5 subespecies, con su correspondiente distribución geográfica:[2]
El vireo gorjeador (en México) (Vireo gilvus), también denominado vireo canoro (en Costa Rica), vireo cantor (en Honduras), vireo grisáceo (en Nicaragua) o vireo chipe, es una especie de ave paseriforme de la familia Vireonidae perteneciente al numeroso género Vireo. Anida en América del Norte y migra hacia México, América Central e islas del Caribe en los inviernos boreales.
Vireo gilvus Vireo generoko animalia da. Hegaztien barruko Vireonidae familian sailkatua dago.
Vireo gilvus Vireo generoko animalia da. Hegaztien barruko Vireonidae familian sailkatua dago.
Lavertajavireo (Vireo gilvus) on pohjoisamerikkalainen lintulaji. Lajia esiintyy Yhdysvalloissa Teksasista Maineen saakka. Se on vähentynyt ympäristömyrkkyjen johdosta. Lajin laulu muistuttaa amerikanpunavarpusen laulua. Lajin selkä on oliivinvihreä ja vatsa vaaleankellertävä.
Lavertajavireo (Vireo gilvus) on pohjoisamerikkalainen lintulaji. Lajia esiintyy Yhdysvalloissa Teksasista Maineen saakka. Se on vähentynyt ympäristömyrkkyjen johdosta. Lajin laulu muistuttaa amerikanpunavarpusen laulua. Lajin selkä on oliivinvihreä ja vatsa vaaleankellertävä.
Vireo gilvus
Le Viréo mélodieux (Vireo gilvus) est une espèce de passereau appartenant à la famille des Vireonidae.
De orpheusvireo (Vireo gilvus) is een zangvogel uit de familie Vireonidae (vireo's).
Deze soort telt 5 ondersoorten:
De orpheusvireo (Vireo gilvus) is een zangvogel uit de familie Vireonidae (vireo's).
Sångvireo[2] (Vireo gilvus) är en fågel i familjen vireor inom ordningen tättingar.[3]
Sångvireo delas in i sex underarter i två grupper:[3]
Underartsgruppen swainsoni har föreslagits utgöra en egen art.
Arten har ett stort utbredningsområde och en stor population, och tros öka i antal.[1] Utifrån dessa kriterier kategoriserar IUCN arten som livskraftig (LC).[1] Världspopulationen uppskattas till 22 miljoner individer.[1]
Wikimedia Commons har media som rör sångvireo.
Wikispecies har information om Vireo gilvus.
Vireo gilvus là một loài chim trong họ Vireonidae.[1]
Vireo gilvus là một loài chim trong họ Vireonidae.
