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Ferruginous partridge
Conservation status
Near Threatened  (IUCN 3.1)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Aves
Order:	Galliformes
Family:	Phasianidae
Subfamily:	Rollulinae
Genus:	Caloperdix Blyth, 1861
Species:	C. oculeus
Binomial name
Caloperdix oculeus (Temminck, 1815)

The ferruginous partridge (Caloperdix oculeus) is a species of bird in the family Phasianidae. It belongs to the monotypical genus Caloperdix. It is found in Indonesia, Malaysia, Myanmar, and Thailand.

Taxonomy

The ferruginous partridge was originally described by Coenraad Jacob Temminck in 1815, who described it as Perdix oculea. The specific name oculea is a reference to the Latin oculus for eyes, meaning that it was full of eyes or dotted with coloured spots. The species was moved to the monotypic genus Caloperdix in 1861 by Edward Blyth. The generic name is derived from the Ancient Greek kalos for beautiful and perdikos for partridge.

The ferruginous partridge has three recognized subspecies:

• C. o. borneensis (Ogilvie-Grant, 1892)
• C. o. ocellatus (Raffles, 1822)
• C. o. oculeus (Temminck, 1815)

Distribution and habitat

The ferruginous partridge is found in a variety of habitats, including tropical dry forest and tropical moist lowland forest, secondary scrub and secondary bamboo growth. It is found from sea-level to 1,200 m (3,900 ft).

The ferruginous partridge ranges from southern Myanmar through the Kra Isthmus into the Malay Peninsula, as well as Borneo and Sumatra.

Description

The ferruginous partridge measures from 27 to 32 cm (11–13 in) in length and weighs between 191–230 g (6.7–8.1 oz). The plumage is distinctive, having a rufous head, breast and belly and black scaled with white upper back and sides of breast and flanks. The wings are brown with black spots, and the rest of the back is black scaled with rufous. The sexes are similar except the male has two spurs and the female just one.  

Behaviour

The ferruginous partridge forages in small pairs or alone for seeds, fruits, grasses and insects. Very little is known about its breeding behaviour; the clutch size is 8-10 pure white eggs laid in a domed nest.

Status

The ferruginous partridge is believed to be declining across its range due to habitat loss, and has therefore been assessed as near threatened with extinction.

References

1. BirdLife International (2016). "Caloperdix oculeus". IUCN Red List of Threatened Species. 2016: e.T22679094A92802432. doi:10.2305/IUCN.UK.2016-3.RLTS.T22679094A92802432.en. Retrieved 12 November 2021.
2. ^ Jobling, J. A. (2018). Key to Scientific Names in Ornithology. In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.) (2018). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from www.hbw.com).
3. IOC World Bird List 13.1 (Report). doi:10.14344/ioc.ml.13.1.
4. ^ McGowan, P.J.K. & Kirwan, G.M. (2019). Ferruginous Partridge (Caloperdix oculeus). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from https://www.hbw.com/node/53466 on 23 February 2019).

v t e Genera of landfowl and their extinct allies
Kingdom: Animalia Phylum: Chordata Class: Aves Superorder: Galloanserae Clade: Pangalliformes
Pangalliformes incertae sedis †Anisolornis? †Archaeophasianus? †Argillipes? †Austinornis? †Chambiortyx †Coturnipes? †"Gigantibis"? †Litoripes? †Percolinus? †Tegulavis? †Gallinuloididae Gallinuloides Paraortygoides †Paraortygidae Paraortyx Pirortyx Scopelortyx Xorazmortyx †Quercymegapodiidae Ameripodius Quercymegapodius Taubacrex †Sylviornithidae Megavitiornis Sylviornis Galliformes See below ↓
Galliformes Galliformes †Amitabha †Bumbanipodius †Bumbanortyx †Linquornis †Namaortyx †Palaeoalectoris †Procrax †Sobniogallus †Taoperdix Megapodiidae †Garrdimalga? †Mwalau †Ngawupodius Alecturini Aepypodius Alectura †Latagallina Leipoa †Progura Talegalla Megapodiini Eulipoa Macrocephalon Megapodius Cracidae †Archaealectrornis †Boreortalis †Palaeonossax †Procrax Penelopinae Aburria Chamaepetes Penelope Penelopina Pipile Cracinae Oreophasis Ortalis Cracini Crax Mitu Nothocrax Pauxi Phasianoidea See below ↓
Phasianoidea Numididae Acryllium Agelastes Guttera Numida †Telecrex Odontophoridae †Miortyx †Nanortyx †Neortyx Ptilopachinae Ptilopachus Odontophorinae Callipepla Colinus Cyrtonyx Dactylortyx Dendrortyx Odontophorus Oreortyx Philortyx Rhynchortyx Phasianidae See below ↓
Phasianidae Phasianidae †Bantamyx †Centuriavis †Diangallus †Eurobambusicola †Lophogallus †Megalocoturnix †Miogallus †Mioryaba †Palaeocryptonyx †Palaeortyx †Panraogallus †Pliogallus †Plioperdix †Rustaviornis †Schaubortyx †Shandongornis †Shanxiornis †Titanoperdix †Tologuica Rollulinae Arborophila Caloperdix Melanoperdix Rhizothera Rollulus Xenoperdix Pavoninae Tropicoperdix Coturnicini Alectoris Ammoperdix Coturnix Margaroperdix †?Ophrysia Perdicula Pternistis Synoicus Tetraogallus Gallini Bambusicola Campocolinus Francolinus Gallus Ortygornis Peliperdix Scleroptila Pavonini Afropavo Argusianus Pavo Rheinardia Polyplectronini Galloperdix Haematortyx Polyplectron Phasianinae †Chauvireria Ithaginis Lerwa Lophophorini Lophophorus Tetraophasis Tragopan Phasianini Catreus Chrysolophus Crossoptilon Lophura Perdix Phasianus Syrmaticus Tetraonini Bonasa Canachites Centrocercus Dendragapus Falcipennis Lagopus Lyrurus Meleagris †Palaealectoris †Proagriocharis Pucrasia †Rhegminornis Tetrao Tetrastes Tympanuchus

• IUCN Red List near threatened species
• Rollulinae
• Partridges
• Birds of Malesia
• Birds described in 1815