Shiny Cowbird (Molothrus bonariensis)
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Shiny Cowbird

Molothrus bonariensis (Gmelin, JF, 1789)

18 cmLength42 gWeight

The shiny cowbird (Molothrus bonariensis) is a passerine bird in the New World family Icteridae.

Most records: Argentina, Colombia, Brazil

Least Concern

Where and when it's recorded

Most records: Argentina, Colombia, Brazil

Shiny Cowbird has been recorded at 1,111 of the 8,276 birding hotspots we track, in 39 countries and regions.

Records by month Southern Hemisphere

Where it's recorded most

  1. Reserva Ecológica Costanera SurArgentina10,501 records
  2. Posada El GalloVenezuela2,635 records
  3. Hotel Tinamú Birding Nature ReserveColombia1,954 records
More places
  1. Reserva Ecológica Ciudad Universitaria - Costanera NorteArgentina1,409 records
  2. La Florida - Bosque de Las AvesColombia1,389 records
  3. RN Laguna de SonsoColombia1,255 records
  4. Jardín EncantadoColombia1,190 records
  5. Finca La AraucanaColombia1,118 records
  6. Poconé – Pousada PiuvalBrazil1,116 records
  7. Bubali Bird SanctuaryAruba1,112 records

Countries and regions with the most records

ArgentinaColombiaBrazilEcuadorChileVenezuelaUruguayPuerto Rico

eBird records via GBIF up to 2024-12-31. A record means someone listed it; more records partly mean more birders, not more birds.

About

The shiny cowbird (Molothrus bonariensis) is a passerine bird in the New World family Icteridae. It breeds in most of South America except for dense forests and areas of high altitude such as mountains. Since 1900 the shiny cowbird's range has shifted northward, and it was recorded in the Caribbean islands as well as the United States, where it is found breeding in southern Florida.

Excerpt from Wikipedia, CC BY-SA 4.0 · authors · Read more on Wikipedia

Questions

How big is the Shiny Cowbird?

The Shiny Cowbird is about 18 cm long and weighs around 42 g.

Where does the Shiny Cowbird live?

Its breeding range: North America, South America: southeastern USA (rare), Caribbean, Costa Rica to central Chile and south-central Argentina. It is most often recorded in Argentina, Colombia and Brazil.

Is the Shiny Cowbird endangered?

The IUCN Red List classifies the Shiny Cowbird as Least Concern.

What does the Shiny Cowbird eat?

Main food: Insects & other invertebrates.

What family is the Shiny Cowbird in?

It belongs to the family Oropendolas, New World Orioles, Blackbirds (Icteridae), order Passerines (Passeriformes).

At a glance

Length
18 cm
Weight
42 g
Habitat
Woodland
Diet
Insects & other invertebrates
Lifestyle
Active on the ground
Migration
Resident (barely migrates)
Conservation
Least Concern
More measurements
Wing
110 mm
Tail
83 mm
Bill
20 mm
Tarsus
26 mm

Averages from the AVONET dataset; length from field guides where available.

Range

North America, South America: southeastern USA (rare), Caribbean, Costa Rica to central Chile and south-central Argentina

Breeding range, IOC World Bird List 15.2

Classification

Order
Passerines Passeriformes
Genus
Molothrus

Other birds in the genus Molothrus

Shiny Cowbird

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