Blue-gray Tanager

Blue-gray Tanager

Taxobox
name = Blue-gray Tanager



image_width = 256px
status = LC | status_system = IUCN3.1
regnum = Animalia
phylum = Chordata
classis = Aves
ordo = Passeriformes
familia = Thraupidae
genus = "Thraupis"
species = "T. episcopus"
binomial = "Thraupis episcopus"
binomial_authority = Linnaeus, 1766
The Blue-gray Tanager, "Thraupis episcopus", is a medium-sized South American songbird of the Tanager family, Thraupidae. Its range is from Mexico south to northeast Bolivia and northern Brazil, all of the Amazon Basin, except the very south. It has been introduced to Lima, Peru.

The breeding habitat is open woodland, cultivated areas and gardens. One to three, usually two, dark-marked whitish to grey green eggs are laid in a deep cup nest in a high tree fork or building crevice. Incubation by the female is 14 days with another 17 to fledging. The nest is sometimes parasitised by "Molothrus" cowbirds. The Blue-gray Tanager is 18 cm long and weighs 35 g. Adults have a pale blue-gray head and underparts, with darker blue upperparts. The bill is short and quite thick. Sexes are similar, but the immature is much duller in plumage.

There are a number of races. "T. e. berlepschi" is endemic to Tobago, and is a brighter and darker blue on the rump and shoulder. "T. e. neosophila", with a violet shoulder patch, occurs in northern Venezuela, Trinidad, eastern Colombia and the far north of Brazil. "T. e.mediana" of the southern Amazon basin has a white wing patch, and "T. e. cana" in the northern Amazon has blue shoulders.

The Blue-gray Tanager lives mainly on fruit, but will also take some nectar and insects. This is a common, restless, noisy and confiding species, usually found in pairs, but sometimes small groups. It thrives around human habitation, and will take some cultivated fruit like papaya. The song is a squeaky twittering, interspersed with "tseee" and "tsuup" call notes.

In Trinidad and Tobago, this bird is locally called the 'Blue Jean'.

Widespread and common throughout its large range, the Blue-gray Tanager is evaluated as Least Concern on the IUCN Red List of Threatened Species.

References

* Database entry includes justification for why this species is of least concern
* "Birds of Venezuela" by Hilty, ISBN 0-7136-6418-5
*cite book
last = ffrench
first = Richard
title = A Guide to the Birds of Trinidad and Tobago
edition = 2nd edition
year = 1991
publisher = Comstock Publishing
isbn = 0-8014-9792-2

External links

* [http://ibc.hbw.com/ibc/phtml/especie.phtml?idEspecie=9180 Blue-gray Tanager videos] on the Internet Bird Collection
* [http://www.birdlife.org/datazone/species/index.html?action=SpcHTMDetails.asp&sid=9313&m=0 BirdLife Species Factsheet]
* [http://www.redlist.org/search/details.php?species=53824 IUCN Red List]
* [http://www.bird-stamps.org/cspecies/20111800.htm Stamps] (for Belize, Panama, Suriname) with RangeMap
* [http://www.stevenrotsch.com/National%20Aviary%202006%20HTML/_mg_7622%20blue-grey%20tanager.htm Photo-High Res] ; [http://www.stevenrotsch.com/National%20Aviary%202006%20HTML/index.htm Article] stevenrotsch
* [http://vireo.acnatsci.org/search.html?Form=Search&SEARCHBY=Common&KEYWORDS=blue-gray+tanager&showwhat=images&AGE=All&SEX=All&ACT=All&Search=Search&VIEW=All&ORIENTATION=All&RESULTS=24 Blue-gray Tanager photo gallery] VIREO


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