Giant Cowbird

Molothrus oryzivorus

Least Concern · IUCN Red List

LCLeast ConcernOmnivoreForestMedium · 182 g

What the Giant Cowbird sounds like

Sonogram of the Giant Cowbird: time runs left to right, pitch bottom to top, and the brighter the mark the louder the sound.
Recorded by Niels Krabbe · Call · Pichincha: Tandayapa ridge 3 km SSW Tandayapa, Ecuador · CC BY-SA 4.0 · via xeno-canto
Sonogram of the Giant Cowbird: time runs left to right, pitch bottom to top, and the brighter the mark the louder the sound.
Recorded by Niels Krabbe · Call, calls · Pichincha: Tandayapa ridge 3 km SSW Tandayapa, Ecuador · CC BY-SA 4.0 · via xeno-canto
Sonogram of the Giant Cowbird: time runs left to right, pitch bottom to top, and the brighter the mark the louder the sound.
Recorded by Tim Hirsch · Song · Miracatu, São Paulo, Brazil · CC BY-SA 4.0 · via xeno-canto

ID tip

The male giant cowbird is 34 cm (13 in) long, weighs 174–242 g (6.1–8.5 oz) and is iridescent black, with a long tail, long bill, small head, and a neck ruff which is expanded in display. The female is smaller, averaging 29 cm (11 in) in length and weighing 144–167 g (5.1–5.9 oz). The female is less iridescent than the male, and the absence of the neck ruff makes her look less small-headed. Juvenile males are similar to the adult male, but browner, and with a pale, not black, bill.

Text from Wikipedia, licensed CC BY-SA 4.0.

When to see the Giant Cowbird

One bar for each month, and every month is filled: this bird is recorded here in all twelve. The wide bar is October, the month with the most records.

Where to see the Giant Cowbird

Regular range

The map shades 20 countries with regular records. Everything unshaded has no records. Countries are listed below the map.

About the Giant Cowbird

The giant cowbird is a large passerine bird in the New World family Icteridae. It breeds from southern Mexico south to northern Argentina, and on Trinidad and Tobago. It may have relatively recently colonised the latter island. It is a brood parasite and lays its eggs in the nests of other birds.

Text adapted from Wikipedia, licensed CC BY-SA 4.0.

Easily confused with

Side by side: Brown-headed Cowbird vs Giant Cowbird · Giant Cowbird vs Shiny Cowbird · Bronzed Cowbird vs Giant Cowbird · Giant Cowbird vs Yellow-billed Cacique · Giant Cowbird vs Screaming Cowbird

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