Chalk-browed Mockingbird
The Chalk-browed Mockingbird is fairly common around Buenos Aires. They sometimes forage on the ground, and they cock their tail a lot. They are the same shape as a Northern Mockingbird, but they are browner and have a whitish line over the eye. Near our lunch site at Otamendi, I looked into one of their nests while the parents were away. It contained three small tan eggs with brown speckles. Right after I left, the parents came back, and they aggressively defended the nest, including against a watchman who was sitting nearby.
Chalk-browed Mockingbird
The Chalk-browed Mockingbird is fairly common around Buenos Aires. They sometimes forage on the ground, and they cock their tail a lot. They are the same shape as a Northern Mockingbird, but they are browner and have a whitish line over the eye. Near our lunch site at Otamendi, I looked into one of their nests while the parents were away. It contained three small tan eggs with brown speckles. Right after I left, the parents came back, and they aggressively defended the nest, including against a watchman who was sitting nearby.