- Eared Quetzal
Taxobox
name = Eared Quetzal
status = NT | status_system = IUCN3.1
regnum =Animal ia
phylum = Chordata
classis = Aves
ordo =Trogoniformes
familia =Trogonidae
genus = "Euptilotis"
genus_authority = Gould, 1858
species = "E. neoxenus "
binomial = "Euptilotis neoxenus"
binomial_authority = (Gould, 1838)The Eared Quetzal ("Euptilotis neoxenus"), also known as the Eared Trogon, is a
near passerine bird in thetrogon family, Trogonidae. It breeds in streamside pine-oak forests and canyons in theSierra Madre Occidental ofMexico south to westernMichoacán . It is sometimes seen as a vagrant to southeasternmostArizona in theUnited States and has bred there. This range includes part of theMadrean sky islands region of southeasternArizona , southwesternNew Mexico , and northernSonora .It is a resident of the middle to upper levels of pine-oak woodlands and oak-conifer forests, frequently along streams. It nests 5–9 m high in an unlined shallow tree cavity, usually selecting an old
woodpecker hole. Nests have been observed in pine, fir, maple, and aspen trees. Limited excavation of the cavity is accomplished using the bill to dig into the rotten wood of the walls and opening.Quetzal s differ from typical New Worldtrogon s in having iridescent wing coverts, less extensive fusion between the two forward-facing toes of theirheterodactyl foot, broad tails with distinctly convex (rather than straight or concave) sides, and eggs with pale blue shells. They also average larger in body size than typical trogons, and the eggs and young develop more slowly. The Eared Quetzal is a seemingly primitive form, lacking the impressively long iridescent upper tail and wing coverts of members of the genusPharomachrus (including theResplendent Quetzal ).Body length is 33–36 cm. Both sexes have iridescent green backs, iridescent dark blue central tail feathers, and outer tail feathers that are predominantly white terminally with a band of black at the base (sometimes partially barred black and white in females). The bill is dull gray with a slightly darker band at the tip. The adult male has a blackish head, iridescent green breast, and geranium red belly and undertail coverts. The adult female has a gray head, breast, and upper belly and less extensive (though equally bright) red on the lower belly. Both sexes bear the wispy hair-like auricular plumes that give the species its name, though these are rarely apparent in the field. Both head and bill appear rather small and narrow in comparison to those of typical
trogon s.The male's song (tremolo call) is a series of whistled notes increasing in volume. Calls include low-intensity squeals rising in pitch, a loud squeal ending with a sharp "chuck," and a strident cackle given mostly in flight.
Eared Quetzals feed on
insect s, small vertebrates, and fruit, including the warty red fruits of madrone trees.Caterpillar s,moth s,katydid s,cicada s, smalllizard s, and other prey are fed to the young. Like other trogons, Eared Quetzals often pluck prey and fruit while hovering.Members of this species have been observed to exhibit aversion to large areas of conspicuous color on and near human observers (negative
chromotropic responses), including white, red, orange, and blue ( [http://www.sabo.org/eqcmrs.htm Williamson 1992] ). This suggests that thespecies-confidence hypothesis ( [http://elibrary.unm.edu/sora/Wilson/v105n04/p0628-p0636.pdf Gutzwiller and Marcum 1993] ), which states that birds tend to be attracted to colors that match those found in their species and repelled by colors not found in their species, does not apply to Eared Quetzals.References
* Database entry includes justification for why this species is near threatened
* Williamson, S. L. 1992. The Eared Trogon in Arizona: Behavior, ecology, and management of the "Northern Quetzal." Pages 98-101 in Proceedings of the Chiricahua Mountains Research Symposium, 15-16 March 1992. Southwest Parks and Monuments Association, Tucson, Arizona. [http://www.sabo.org/eqcmrs.htm Link]External links
* [http://www.birdlife.org/datazone/species/index.html?action=SpcHTMDetails.asp&sid=1002&m=0 BirdLife Species Factsheet]
* [http://vireo.acnatsci.org/species_image.php?species=Euptilotis+neoxenus Eared Quetzal photo] VIREO [http://vireo.acnatsci.org/species_image.php?species=Euptilotis+neoxenus Photo-High Res]
* [http://www.sabo.org/photoalb/maderach.htm Photo Album: Thick-billed Parrots and Eared Quetzals in Madera, Chihuahua]
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