Giant Cowbird
Molothrus oryzivorus
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassAves (Aus)
- OrderPasseriformes
- FamilyIcteridae (Ictèrids)
- GenusMolothrus (Cowbirds)
- SpeciesMolothrus oryzivorus (Giant Cowbird)
The giant cowbird (Molothrus oryzivorus) 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. Wikipedia →
Closest Relatives at Iberá National Park
Shiny Cowbird
Molothrus bonariensis
Screaming Cowbird
Molothrus rufoaxillaris
Yellow-rumped Marshbird
Pseudoleistes guirahuro
Scarlet-headed Blackbird
Amblyramphus holosericeus
Brown-and-yellow Marshbird
Pseudoleistes virescens
Unicoloured Blackbird
Agelasticus cyanopus
Solitary Black Cacique
Cacicus solitarius
Epaulet Oriole
Icterus cayanensis
Grayish Baywing
Agelaioides badius
Chopí Blackbird
Gnorimopsar chopi
Chestnut-capped Blackbird
Chrysomus ruficapillus
White-browed Meadowlark
Sturnella superciliaris
📅 Monthly Probability
Fewer than 5 records of Giant Cowbird at Iberá National Park — not enough to chart months honestly.
☀️ When They're Spotted
Most active during daytime hours (6am–6pm) · across all parks (global)
Global Distribution
Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.
where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is) · parks where it occurs — tap a pin for the sighting probability there