Birds of Brazil

    PASSERIFORMES: Icteridae (Oropendolas, New World Orioles, Blackbirds)  
Genus: Molothrus (3 species, 6 worldwide)


Shiny Cowbird
Shiny Cowbird (Molothrus bonariensis bonariensis) Male
Argentina  
   
Photograph by Tom Friedel   © All Rights Reserved.

Shiny Cowbird
Shiny Cowbird (Molothrus bonariensis bonariensis) Female
Agua Dulces, Rocha, Uruguay  
   
Photograph by Tom Friedel   © All Rights Reserved.

Widespread and common in open areas and near livestock. Cowbirds lay eggs in the nests of other species such as sparrows. The female ranges in color from almost black to grey and light brown across its large range.
A large Shiny Cowbird baby begging a its surrogate parent, a tiny and probably exhausted [Rufous-collared Sparrow], for food. Many species of Cuckoos lay eggs in the nests of other species.

Giant Cowbird
Giant Cowbird (Molothrus oryzivorus oryzivorus)
ProAves Tangaras Reserve, El Carmen de Atrato, Choco, Colombia  
   
Photograph by Tom Friedel   © All Rights Reserved.

Giant Cowbirds are large blackbirds that lay eggs in oropendola nests and grow up with oropendola parents. A widespread but often difficult to find species. Note distinctive shape.

Screaming Cowbird
Screaming Cowbird (Molothrus rufoaxillaris) Male
Islas del Ibicuy, Entre Rios, Argentina  
   
Photograph by Gustavo Masuzzo   © All Rights Reserved.

Similar to the Shiny Cowbird but less iridescent.


© Tom Friedel - All Rights Reserved, except for images and data otherwise noted.       Colombia       Panama       Ecuador       Costa Rica       Mexico
Experimental sites:       Peru       Venezuela       The World       Brazil       Bolivia
Really Experimental sites:       Guyana       Cuba