Chalk-browed Mockingbird (a/k/a Calandria Grande - Mimus saturninus). ["Calandria Grande (Mimus saturninus) - Gesell."] Google search: "The Chalk-browed Mockingbird (Scientific name: Mimus saturninus) is a bird found in most of Brazil & in parts of Bolivia, Uruguay, Paraguay, Argentina, & Suriname. It's a bird of open wooded areas, including urban & suburban gardens. Wikipedia."