silhouette of bird on tree branch

The bird in the silhouette is a Polioptila dumicola (Vieillot, 1817) commonly known as the masked gnatcatcher, is a small active insectivorous songbird, found in northern Argentina, Uruguay, Paraguay, Bolivia and southern and central Brazil. It is a restless bird that always walks through the bushes and low trees, it moves between the trees by means of small jumps and short flights.