New World Blackbirds (Icteridae)
Bronzed Cowbird (Molothrus aeneus) - HBW 16, p. 785
French: Vacher bronzé
German: Rotaugen-Kuhstärling
Spanish: Tordo Ojirrojo
Other common names: Red-eyed Cowbird
Taxonomy: P.[sarocolius] aeneus Wagler, 1829, Veracruz, Mexico.
Formerly placed in genus Tangavius, but such treatment not supported by molecular-genetic findings. Analyses of mitochondrial DNA indicate closest relationship with M. rufoaxillaris and M. oryzivorus. Often considered conspecific with M. armenti, but shows more marked sexual dichromatism and also differs vocally. Three subspecies recognized.
Subspecies and Distribution:
- loyei Parkes & Blake, 1965 - breeds from SW USA (S California, Arizona, New Mexico and W Texas) S in W Mexico to Nayarit and N Baja California.
- aeneus (Wagler, 1829) - breeds in S USA (S Texas, Louisiana and Florida) and from E & C Mexico S, including nearby islands (e.g. Cozumel I), to C Panama.
- assimilis (Nelson, 1900) - SW Mexico from Jalisco S to Chiapas.
- Not Assessed Enlarge map
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A male walking on the ground, showing some courtship behaviour. Locality Coba, Quintana Roo State, Yucatán Peninsula, Mexico (Southern) (ssp aeneus)
Pieter de Groot Boersma 24 July 2005 4 years ago 37 sec 4.2 -
A male displaying to a female on the ground Locality Calipatria, Imperial County, California, USA (United States) (ssp loyei)
Paul Clarke 13 March 2001 4 years ago 40 sec 3.7 -
Two females and a male on a stick, the latter wiping the bill off the branch. Locality Coba, Quintana Roo State, Yucatán Peninsula, Mexico (Southern) (ssp aeneus)
Pieter de Groot Boersma 24 July 2005 4 years ago 13 sec 3.6 -
A perched bird Locality Campeche State, Yucatán Peninsula, Mexico (Southern) (ssp aeneus)
Juan Sanabria 1 August 2009 2 years ago 25 sec 3.5 -
A mixed group (with Great-tailed Grackles) in a leafless tree, preening Locality Tulum, Quintana Roo State, Yucatán Peninsula, Mexico (Southern) (ssp aeneus)
Josep del Hoyo 25 September 2006 4 years ago 35 sec 3.3 -
Male Bronzed Cowbird (Vaquero de Ojos Rojos, Tordo Ojorojo) eating seeds. Locality Guatemala City, Guatemala Department, Guatemala (ssp aeneus)
jutrera 4 June 2011 35 weeks ago 58 sec 3.3
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A bird perched on a branch.
Locality El Relleno, Pérez Zeledón, San José Province, Costa Rica
manuel retana 8 June 2009 2 years ago 3.5 -
A male displaying before a female on the ground.
Locality Morazán, Pérez Zeledón, San José Province, Costa Rica
manuel retana 26 May 2009 2 years ago 3.3 -
Bird feeding under feeders.
Locality Cave Creek Ranch, Cave Creek Canyon, Cochise County, Arizona, USA (United States)
Miriam Bauman 17 May 2009 1 year ago 3 -
Male Bronzed Cowbird (Vaquero de Ojos Rojos, Tordo Ojorojo) on a twig. Beatiful song.
Locality Guatemala City, Guatemala Department, Guatemala (ssp passeriformes)
jutrera 4 June 2011 35 weeks ago 2.8 -
A male in a tree.
Locality Teotitlán del Valle, Oaxaca State, Mexico (Southern) (ssp assimilis)
Josep del Hoyo 19 April 2009 2 years ago 2.7 -
A bird on top of a tree.
Locality Las Quebradas Biological Center, Quebradas, Pérez Zeledón, San José Province, Costa Rica
manuel retana 20 May 2009 2 years ago 2.5
- No sound recordings available yet
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