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Topic: Indigobird

Related Topics

Viduidae

Village Indigobird

Bronze Mannikin

Finch

Estrildidae

Genus

Africa

	Indigobird - Wikipedia, the free encyclopedia
		The Indigobirds and whydahs, are small passerine birds native to Africa.
		All are brood parasites, which lay their eggs in the nests of estrildid finch species; most indigobirds use fire-finches as hosts, whereas the paradise whydahs chose pytilias.
		Many of the indigo-plumaged species named as "indigobirds" are very similar in appearance, with the males difficult to separate in the field, and the young and females near impossible.
	en.wikipedia.org /wiki/Indigobird (291 words)

	Indigobird - Encyclopedia, History, Geography and Biography
		Most are brood parasites, which lay their eggs in the nests of estrildid finch species; the indigobirds select fire-finches, and the whydahs chose pytilias.
		Thus the Village Indigobird is often found with Red-billed Fire-finches.
		The matching with the host is the driving force behind the speciation of this family, but the close similarities suggest that it is of recent origin.
	www.arikah.net /encyclopedia/Viduidae (296 words)

	Research at BU -- Spotlight -- 2004 -- Love Songs (Site not responding. Last check: 2007-10-18)
		Male indigobirds later sing these songs as part of their courtship rituals, and this behavior leads to the development of new indigobird species, according to recent research by Michael Sorenson, an assistant professor of biology.
		When ready to lay their eggs, the female indigobirds laid them in the nests of the new species — the one in which they had hatched, not the species that their parents had parasitized.
		Since indigobird chicks with the same markings are more likely to survive in the host nests, the researchers believe that female indigobirds use the song to find mates with genes that will produce chicks with markings that help them best blend in with the finch chicks.
	www.bu.edu /research/spotlight/2004/birds.html (403 words)

	SONG MIMICRY AND SPECIES RELATIONSHIPS AMONG THE WEST AFRICAN PALE-WINGED INDIGOBIRDS (Site not responding. Last check: 2007-10-18)
		A green indigobird with pale wings and feet was photographed in color and was heard mimicking L. rujopicta in tall dry grass at the edge of Alfaia village (9 ø 47' N, 11 ø 35' W) north of the Mongo River near Musaia.
		The local distribution pattern of indigobirds and firefinches is in agreement with the direct field observations of song mimicry in revealing no consistent combination of parasite and host in all different parts of West Africa.
		The indigobirds are a cautionary tale to biologists who would define species limits on behavioral grounds without also considering the effec- tiveness of reproductive isolation between forms with different behaviors.
	elibrary.unm.edu /sora/Auk/v093n01/p0025-p0038.html (7965 words)

	Michael Sorenson Boston University
		Most indigobirds parasitize a single species of firefinch (Lagonosticta spp.) and young indigobirds mimic the species-specific mouth markings of host young.
		Mitochondrial DNA haplotypes are broadly shared among indigobird species, suggesting a very recent diversification of these species and incomplete sorting of ancestral lineages.
		The rapid radiation of indigobirds contrasts with the ancient origin of parasitic behavior in this lineage of African finches.
	www.mbl.edu /CASSLS/michael_sorenson.htm (142 words)

	SONG DIALECTS AND NEIGHBORHOOD HABITATS IN THE INDIGOBIRDS VIDUA CHALYBEATA AND V. PURPURASCENS AT LOCHINVAR NATIONAL ... (Site not responding. Last check: 2007-10-18)
		The indigobirds are species-specific brood parasites of the firefinches (Lagonosticta spp.) (Nicolai 1964, Payne 1973).
		As the two indigobirds are similar in ecology and in song structure, differing mainly in their foster species and in the mimicry of their foster species' songs, one species provides a test of the ecological significance of variation in the other.
		On the other hand some indigobird songs are mimetic, matching the local songs of their foster species of firefinch, and these songs are often slurred tonal whistles with less varying temporal complexity of the notes.
	elibrary.unm.edu /sora/JFO/v058n02/p0152-p0170.html (10847 words)

	SONG MIMICRY AND ASSOCIATION OF BROOD-PARASITIC INDIGOBIRDS (VIDUA) WITH DYBOWSKI'S TWINSPOT (EUSTICHOSPIZA DYBOWSKII) (Site not responding. Last check: 2007-10-18)
		The song mimicry indicates that a population of indigobirds is a brood parasite of the twin- spot, although direct field evidence of its brood parasitism remains to be determined.
		The only juvenile indigobird that was captured from these populations matched the mouth pat- tern of the Black-bellied Fire finch (Payne and Payne 1994), and it is unknown whether all the corresponding indigobirds have genetic adap- tations that mimic their foster species' young.
		Although the indigobird nest- lings that hatch in the nest of an unusual foster species are sometimes disadvantaged in receiv- ing parental care from their foster parents, we suspect that in some conditions mouth mimicry of their foster species' nestlings is not necessary for them to survive to fledging and indepen- dence.
	elibrary.unm.edu /sora/Auk/v112n03/p0649-p0658.html (10501 words)

	News & Events - News Releases (Site not responding. Last check: 2007-10-18)
		Known as brood parasites, they are more the “park-and-fly” type; a female lays an egg in the nest of another bird species and then wings away, confident that her egg—and the hatchling that develops—will be cared for by the nest owners.
		Indigobird mouth markings, a pattern of markings and color most visible to firefinch parents feeding open-mouthed hatchlings, mimic those of their preferred finch species.
		Their results show that the common ancestor of all indigobird species lived less than a million years ago and that current species of indigobirds likely evolved within the past few tens of thousands of years, a mere sliver in evolutionary time.
	www.bu.edu /phpbin/news/releases/display.php?id=577 (894 words)

	Boston.com / News / Boston Globe / Ideas / Worth a song (Site not responding. Last check: 2007-10-18)
		Firefinch chicks have elaborate markings inside of their mouths, and the indigobirds associated with each of the different firefinch species have evolved mouth markings to match.
		Although female indigobirds don't sing, they do learn the songs of their host, and prefer to mate with a male indigobird that sings the same song.
		A male indigobird singing a particular song is advertising, ``I was raised by this host, so I must have the right mouth markings.'' This provides a mechanism for the creation of new species: Their song-learning behavior isolates indigobirds into distinct populations.
	www.boston.com /news/globe/ideas/articles/2003/09/07/worth_a_song (361 words)

	Science News: Egg-deploying bird species divide for a song - Musical Pairs (Site not responding. Last check: 2007-10-18)
		Indigobirds, which belong to the genus Vidua, lay their eggs in other birds' nests, targeting the hospitality of particular species.
		In a 2001 study of captive village indigobirds from Africa, he and his colleagues fostered nestlings with two host species: the red-billed firefinch, which these indigobird parents would target in the wild, and the Bengalese finch, which these indigobirds wouldn't naturally encounter.
		Indigobirds that grew up in a novel nest could accept the songs of their new foster parents and prefer mates with the same oddball background.
	www.findarticles.com /p/articles/mi_m1200/is_8_164/ai_107897264 (599 words)

	Fall 1999 Michigan Today--Brood Indigo (Site not responding. Last check: 2007-10-18)
		Africa is home to several species of indigobirds, but all are brood parasites, meaning they lay their eggs in other birds' nests.
		The village indigobird's foster parent of choice is the red-billed firefinch-a small, brownish-red songbird that takes parenthood far more seriously than its indigobird neighbors.
		And although female indigobirds don't sing, at mating time they chose a mate that could sing the songs their foster father sang, and always laid eggs in their foster species' nests.
	www.umich.edu /~newsinfo/MT/99/Fal99/mt14f99a.html (538 words)

	R B Payne publications (Site not responding. Last check: 2007-10-18)
		Characterization of microsatellite loci in village indigobirds Vidua chalybeata and cross-species amplification in estrildid and ploceid finches.
		Payne, R. Song mimicry by the village indigobird (Vidua chalybeata) of the red-billed firefinch (Lagonosticta senegala).
		Payne, R. Mimicry and relationships in the indigobirds or combassous of Nigeria.
	www.ummz.lsa.umich.edu /birds/rbprefs.html (2691 words)

	Speciation by host switch in brood parasitic indigobirds : Nature (Site not responding. Last check: 2007-10-18)
		Indigobird nestlings are reared along with host young, and mimic the mouth markings of their respective hosts
		These behavioural mechanisms promote the cohesion of indigobird populations associated with a given host species, and provide a mechanism for reproductive isolation after a new host is colonized.
		Here we show that all indigobird species are similar genetically, but are significantly differentiated in both mitochondrial haplotype and nuclear allele frequencies.
	www.nature.com /cgi-bin/doifinder.pl?URL=/doifinder/10.1038/nature01863 (262 words)

	ACP - Bird Song Splits Species 08 21 03
		A male, adult indigobird learns the songs of his firefinch hosts and uses them in his own courtship.
		In both of the examples, the contrast here between indigobird vocalizations and some of the clearer tones heard when they are mimicking their firefinch hosts is quite distinct.
		These rather different sounds come out of the same indigobird over the course of a few seconds (as is quite typical).
	acp.eugraph.com /news/news03/sorenson.html (293 words)

	Indigobird -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-10-18)
		Most are (Click link for more info and facts about brood parasite) brood parasites, which lay their eggs in the nests of (Click link for more info and facts about estrildid finch) estrildid finch species; the indigobirds select fire-finches, and the whydahs chose pytilias.
		Unlike the (Any of numerous European and North American birds having pointed wings and a long tail) cuckoo, the host's eggs are not destroyed.
		Thus the (Click link for more info and facts about Village Indigobird) Village Indigobird is often found with (Click link for more info and facts about Red-billed Fire-finch) Red-billed Fire-finches.
	www.absoluteastronomy.com /encyclopedia/I/In/Indigobird.htm (429 words)

	Village Indigobird -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-10-18)
		The Village Indigobird, Vidua chalybeata, is a small (Any bird having a musical call) songbird.
		It is a resident breeding bird in most of (The second largest continent; located south of Europe and bordered to the west by the South Atlantic and to the east by the Indian Ocean) Africa south of the (The world's largest desert (3,500,000 square miles) in northern Africa) Sahara Desert.
		This (Click link for more info and facts about indigobird) indigobird is found in many open habitats including open woodland, scrub and cultivation, but, as its name implies, it is most readily seen near villages.
	www.absoluteastronomy.com /encyclopedia/V/Vi/Village_Indigobird.htm (454 words)

	Speciation: Going for a song (Site not responding. Last check: 2007-10-18)
		Though not as well known as the cuckoos, the African brood-parasitic finches are equally fascinating and differ in ways that lend insight into the evolutionary biology of both groups.
		The new genetic data reveal that ten distinct indigobird species evolved from a very recent common ancestor through behavioural rather than geographic isolation.
		In the indigobird the key behavioural components in speciation are imprinting on host song, song mimicry in males and sexual selection in the form of female choice.
	www.nature.com /nature/links/030821/030821-7.html (153 words)

	Auk, The: BEHAVIORAL AND GENETIC IDENTIFICATION OF A HYBRID VIDUA: MATERNAL ORIGIN AND MATE CHOICE IN A BROOD-PARASITIC ...
		Because male indigobirds were seen to engage in unsolicited matings with female whydahs, Payne (1980) reasoned that the mother of the hybrids was a whydah that was fertilized by an indigobird and then laid eggs in nests of her usual host, the Melba Finch.
		Wing length of the hybrid was 75 mm, intermediate between wing lengths of V. paradisaea and indigobirds (Payne 1980).
		The identity of the mother's species within the indigobird species complex is uncertain, because the indigobirds breeding at Lochinvar and elsewhere in southern Africa are only marginally differentiated in mtDNA haplotype frequencies and a number of closely related haplotypes are shared among species (Klein and Payne 1998, Sorenson et al.
	www.24hourscholar.com /p/articles/mi_qa3793/is_200401/ai_n9346984 (1417 words)

	Fall 1999 Michigan Today--Brood Indigo (Site not responding. Last check: 2007-10-18)
		Village indigobird males learn the songs of their foster father, even if it is a Bengalese finch.
		Female indigobirds have no innate preference for firefinch songs, unless they were raised in firefinch nests; in which case they are sexually attracted to males that mimic songs of their foster species.
		Female indigobirds consistently lay their eggs in nests of the species that reared them.
	www.umich.edu /~newsinfo/MT/99/Fal99/mt14f99b.html (323 words)

	Untitled Document (Site not responding. Last check: 2007-10-18)
		Instead, they put their eggs in firefinch nests, and let the host do the rest for them.
		But today, our genetic data tell us that indigobirds have a much shorter evolutionary history than the firefinches.
		A male indigobird raised by a fl-bellied firefinch, for example, will learn to mimic fl-bellied firefinch songs.
	jaschahoffman.com /articles/ideas/worthasong.html (349 words)

	BirdForum - Vidua?
		Hackling the crown feathers I think is a common ability of most excited passerines-- it's not necessarily a crest.
		In many guide-books the legs of Village Indigobird are mentioned as being distinctively orange-red.
		But this is compared to other Indigobirds (which show relatively pale legs and/or bill), the "distinctive part" being a referance to the breeding male that is all dark flish, except for those striking legs and bill.
	www.birdforum.net /showthread.php?t=18144 (483 words)

	Michael D. Sorenson
		Avian brood parasitism spurred my interest in evolutionary biology as a student and parasitic birds have continued to be the focus of most of my research to date.
		Indigobirds are species-specific brood parasites of a number of estrildid finch hosts and have evolved nestling mouth markings that mimic those of the host.
		Parasitic nestlings also learn host songs and adult male parasites incorporate these songs into their courtship displays, resulting in assortative mating among parasites reared by the same host species.
	www.bu.edu /biology/Faculty_Staff/msoren.html (643 words)

	Village Indigobird - Encyclopedia, History, Geography and Biography
		The Village Indigobird, Vidua chalybeata, is a small songbird.
		This indigobird is found in many open habitats including open woodland, scrub and cultivation, but, as its name implies, it is most readily seen near villages.
		This page was last modified 16:08, 4 Jun 2005.
	www.arikah.net /encyclopedia/Village_Indigobird (332 words)

	IngentaConnect Imprinting and the origin of parasite-host species associations i... (Site not responding. Last check: 2007-10-18)
		Brood-parasitic village indigobirds, Vidua chalybeata, were bred in captivity and foster-reared by their normal host species, the red-billed firefinch, Lagonosticta senegala, or by an experimental foster species, the Bengalese finch, Lonchura striata.
		In tests of mate choice, female indigobirds responded preferentially towards mimicry songs of male indigobirds that were similar to those of the females' own foster parents.
		The results support the predictions of a model of imprinting-like behaviour development in which young indigobirds focus their attention on their foster parents, rather than a model of innate bias for songs and nests of their normal host species, or a null model of nonspecific brood parasitism and differential survival.
	www.ingentaconnect.com /content/ap/ar/2000/00000059/00000001/art01283 (363 words)

	Untitled Document
		In both of the following examples, the contrast here between indigobird vocalizations and some of the clearer tones heard when they are mimicking their firefinch hosts is quite distinct.
		These rather different sounds come out of the same indigobird over the course of a few seconds (as is quite typical) - we've done no cutting or pasting here.
		Note: Vidua camerunensis is associated with several hosts in West Africa, but we continue to treat these birds as a single species because there is no discernible morphological differences between the birds using different hosts.
	people.bu.edu /msoren/indigos.html (286 words)

	AVIFAUNA - Picchio Verde. . . l'altro web site
		The young indigobirds mimic the mouth pattern of spots, colors and gape papillae of the young nestlings of their foster species and the host birds rear the young indigobirds with their own young.
		Thus, by being attracted to a male with with a song like her foster father, she ensures that her nestlings will have the same mouth pattern and can be reared without discrimination against them by the foster adults.
		As an example of indigobird mouth patterns, the young Village Indigobird (V. chalybeata) has a yellow mouth lining with a ring of 3 or 5 fl spots and a pair of white papillae with a blue base at each side of the gape, as do the young of their host species, the Red-Billed Firefinch.
	www.scricciolo.com /classificazione/passeriformes25.htm (5411 words)

	The Scotsman - Sci-Tech - Abstract appetite (Site not responding. Last check: 2007-10-18)
		African indigobirds, Vidua spp, lay their eggs among those of other species.
		A female, in turn, will only mate with males that sing the host melodies she learned as a fledgling.
		Dr Michael Sorenson and colleagues at Boston University have studied the genetic make-up of a range of indigobirds.
	thescotsman.scotsman.com /scitech.cfm?id=922632003 (543 words)

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