The blue-and-yellow tanager (Rauenia bonariensis) is a species of bird in the tanager family Thraupidae.

It is found in Argentina, Uruguay, Brazil, Paraguay, Bolivia, extreme northern border Chile, and Andean Peru and Ecuador. Some southern region birds migrate northeastwards in the austral winter into eastern Bolivia and northeastern Argentina; also Paraguay where the birds are only migratory non-breeding residents.

https://en.wikipedia.org/wiki/Blue-and-yellow_tanager