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Shiny Cowbird (Molothrus bonariensis)
Photo: Charles J. Sharp (CC BY-SA)
🐦 Native species of the Iberá

Shiny Cowbird

Molothrus bonariensis

Black with violet gloss and a scandalous lifestyle: it builds no nest and raises no chicks. It leaves its eggs in other birds' nests.

It is South America's great brood parasite: the female lays her eggs in the nests of more than 250 different species, and the foster parents raise the intruder without noticing, even when it doubles them in size. An evolutionary scandal that has worked for millions of years.

Behaviour

It moves in flocks through grassland and towns. Females stake out other birds' nests with a detective's patience to choose where to lay.

How and when to see it

All year round, on any town edge, road or ranch. The violet gloss in the sun separates it from the other blackbirds.

Where to see it in the Iberá

The gateways of the Great Iberá Park where shiny cowbird has confirmed presence:

Tours to see it

Verified providers operating at the gateways where shiny cowbird lives. You contact them directly on WhatsApp from the app.

Species profile

Other species of the Iberá

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