- Bronze-tailed Peacock-Pheasant
Bronze-tailed Peacock-Pheasant Conservation status Scientific classification Kingdom: Animalia Phylum: Chordata Class: Aves Order: Galliformes Family: Phasianidae Subfamily: Phasianinae Genus: Polyplectron Species: P. chalcurum Binomial name Polyplectron chalcurum
- P. c. chalcurum Lesson, 1831
Southern Bronze-tailed Peacock-Pheasant
- P. c. scutulatum Hoogerwerf, 1941
Northern Bronze-tailed Peacock-Pheasant
The Bronze-tailed Peacock-Pheasant is a small, up to 56 cm long, dark brown pheasant with dark grey legs, rather small head and long, narrow tail of sixteen feathers. The tail feathers are chestnut brown with metallic purplish bars near tips. Both sexes are similar. The male has longer tail, two spurs on legs and yellow iris while the unspurred female's is dark brown.
Taxonomy and evolution
- P. c. chalcurum, described by Lesson in 1831, which is known as the Southern Bronze-tailed Peacock-Pheasant.
- P. c. scutulatum, described by Hoogerwerf in 1941, which is known as the Northern Bronze-tailed Peacock-Pheasant.
mtDNA cytochrome b and D-loop as well as the nuclear ovomucoid intron G data confirms that this species belongs to a clade together with the Mountain Peacock-Pheasant, but also the mainland species Germain's Peacock-Pheasant and Grey Peacock-Pheasant (Kimball et al. 2001).
The molecular data suggests - though not with high confidence - that this species diverged relatively recently from ancestral Grey Peacock-Pheasants. This is quite spurious, since biogeography, its peculiarly derived plumage, and the fact that it is an insular mountain endemic indicate it is derived from a comparatively small founder population; this would confound molecular analyses. What seems clear is that the present species evolved from mainland Southeast Asian stock, probably during the Late Pliocene to Early Pleistocene (3.6-1 mya). The loss of ocelli thus is, contrary to long-held opinion, an autapomorphy, and the southern species of this clade - formerly separated in the genus Chalcurus - are probably not each other's closest relatives.
Distribution and habitat
As with other member in the genus, this elusive bird is shy and very wary. But unlike other peacock-pheasants, it has no ocelli. Unusually for Galliformes, pairs of this species move around together not only on foot, but also in the air, in the manner of doves.
The Bronze-tailed Peacock-Pheasant is evaluated as Least Concern on the IUCN Red List of Threatened Species.
- BirdLife International (2004). Polyplectron chalcurum. 2006. IUCN Red List of Threatened Species. IUCN 2006. www.iucnredlist.org. Retrieved on 30 October 2006. Database entry includes justification for why this species is of least concern
- Kimball, Rebecca T.; Braun, Edward L.; Ligon, J. David; Lucchini, Vittorio & Randi, Ettore (2001): A molecular phylogeny of the peacock-pheasants (Galliformes: Polyplectron spp.) indicates loss and reduction of ornamental traits and display behaviours. Biol. J. Linn. Soc. 73(2): 187–198. HTML abstract
- ^ Note that the molecular clock calibration method used by Kimball et al. (2001) is now known to be inappropriate, yielding far too low estimates in galliform birds.
- P. c. chalcurum Lesson, 1831
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